Tool for Microscopic Identification Home

 

Organic Components

image0170-600.jpg Unique Identification: Algae
Site name: Great Salt Lake
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: Andy Cohen
Notes: none
Image Tags: none
UnknownBiological_MR_BV_PP-600.jpg Unique Identification: Algae
Site name: Bosumtwi
Light type: Plane-Polarized Light
Magnification: 630.0
Submitted by: Michael Rosen Blas Valero
Notes: round, translucent, isotropi,c euhedral; aluminosilicate aglutination or precipitation around possible algal cells.
Image Tags: none
algal0001-600.jpg Unique Identification: Algal organic matter
Site name: not specified
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: Amy Myrbo
Notes: none
Image Tags: brown amorphous
org-600.jpg Unique Identification: Algal organic matter
Site name: not specified
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: Amy Myrbo
Notes: none
Image Tags: brown amorphous
algal-600.jpg Unique Identification: Algal organic matter
Site name: not specified
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: Amy Myrbo
Notes: none
Image Tags: brown amorphous
algal0002-600.jpg Unique Identification: Algal organic matter
Site name: not specified
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: Amy Myrbo
Notes: none
Image Tags: brown amorphous
brine_fly_ML_JS-600.jpg Unique Identification: Arthropod
Taxon: Ephydra sp.
Site name: Mono
Light type: Plane-Polarized Light
Magnification: 100
Submitted by: Joe Smoot
Notes: brown in reflected light, mostly opaque, hook shapes from fly larva
Image Tags: none
mussel_shell_fragment_HK0004-600.jpg Unique Identification: Bivalve
Site name: LL92-1
Light type: not specified
Magnification: 400.0
Submitted by: Hedy Kling
Notes: mussel shell fragment
Image Tags: brown translucent striated curved mussel shell
statoblasts_RIPO_jm_4_edit-600.jpg Unique Identification: Bryozoa
Site name: Rice Portage Lake, Carlton County, MN
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: survival capsules of freshwater bryozoans; round, disk shaped, ~1 mm in diameter; glochidiate (barbed) hairs along margins
Image Tags: Bryozoa bristled glochidiate hairy round fringed
TAS-WDS11-1A-2B-1_25.5cm_COM_40x_pp_2-600.jpg Unique Identification: Carbonized Organic Matter
Site name: Woods Lake
Light type: Plane-Polarized Light
Magnification: 400
Submitted by: Jess Rodysill
Notes: none
Image Tags: none
TAS-WDS11-1A-2B-1_25.5cm_COM_40x_cp-600.jpg Unique Identification: Carbonized Organic Matter
Site name: Woods Lake
Light type: Cross-Polarized Light
Magnification: 400
Submitted by: Jess Rodysill
Notes: none
Image Tags: none
TAS-WDS11-1A-2B-1_25.5cm_COM_40x_pp-600.jpg Unique Identification: Carbonized Organic Matter
Site name: Woods Lake
Light type: Plane-Polarized Light
Magnification: 400
Submitted by: Jess Rodysill
Notes: none
Image Tags: none
TAS-WDS11-1A-2B-1_25.5cm_COM_40x_cp_2-600.jpg Unique Identification: Carbonized Organic Matter
Site name: Woods Lake
Light type: Cross-Polarized Light
Magnification: 400
Submitted by: Jess Rodysill
Notes: none
Image Tags: none
GLAD6-BOS04-3C-1H-1_66.5cm_COM_40x_cp-600.jpg Unique Identification: Carbonized Organic Matter
Site name: Lake Bosumtwi
Light type: Cross-Polarized Light
Magnification: 400
Submitted by: Jess Rodysill
Notes: none
Image Tags: none
GLAD6-BOS04-3C-1H-1_66.5cm_COM_40x_pp-600.jpg Unique Identification: Carbonized Organic Matter
Site name: Lake Bosumtwi
Light type: Plane-Polarized Light
Magnification: 400
Submitted by: Jess Rodysill
Notes: none
Image Tags: none
charred_particle_reflected_plane_polarized_light-600.jpg Unique Identification: Charcoal
Site name: Great Salt Lake
Light type: Reflected Light
Magnification: not specified
Submitted by: Andy Cohen
Notes: charred particles
Image Tags: none
charcoal-grass_pp_01-600.jpg Unique Identification: Charcoal
Site name: not specified
Light type: Plane-Polarized Light
Magnification: 400x
Submitted by: Amy Myrbo
Notes: lasagna-noodles grass
Image Tags: none
EYASI_charcoal-600.jpg Unique Identification: Charcoal
Site name: Lake Eyasi
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: not specified
Notes: none
Image Tags: none
image0191-600.jpg Unique Identification: Charcoal
Site name: Spectacle Lake
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: Andy Cohen
Notes: charcoal and arthropod limb
Image Tags: none
charophyte_stem_xp_JS-600.jpg Unique Identification: Charophyte
Site name: NF-II-1
Light type: Cross-Polarized Light
Magnification: 400
Submitted by: Joe Smoot
Notes: rod-shaped high birefringence, granular surface
Image Tags: none
charophyte_stem_JS-600.jpg Unique Identification: Charophyte
Site name: NF-II-1
Light type: Plane-Polarized Light
Magnification: 400
Submitted by: Joe Smoot
Notes: rod-shaped high relief, granular surface
Image Tags: none
charophyte_oogonia_JS-600.jpg Unique Identification: Charophyte
Site name: NFII-2
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: Joe Smoot
Notes: high relief cylindrical with swirl pattern
Image Tags: none
chiro-031-IRW.jpg-600.jpg Unique Identification: Chironomid
Taxon: Chironomidae
Site name: Berendon Pond
Light type: not specified
Magnification: 100x
Submitted by: Ian Walker
Notes: representative chironomid head capsules - Procladius (subfamily Tanypodinae), subtribe Tanytarsina (subfamily Chironominae), tribe Chironomini (subfamily Chironominae), and Heteotrissocladius (subfamily Orthocladiinae) (For identification below family level, consult www.paleolab.ca/wwwguide/ , and specialty literature (e.g., D.R. Oliver & M.E. Roussel, 1983. Insects and Arachnids of Canada, Part 11. The genera of larval midges of Canada: Diptera, Chironomidae. Agriculture Canada, Ottawa).
Image Tags: translucent head
chiro-043-IRW.jpg-600.jpg Unique Identification: Chironomid
Taxon: Chironomidae
Site name: Berendon Pond
Light type: not specified
Magnification: 100x
Submitted by: Ian Walker
Notes: chironomid head capsule - Stictochironomus head capsule with mandibles (For identification below family level, consult www.paleolab.ca/wwwguide/ , and specialty literature (e.g., D.R. Oliver & M.E. Roussel, 1983. Insects and Arachnids of Canada, Part 11. The genera of larval midges of Canada: Diptera, Chironomidae. Agriculture Canada, Ottawa).
Image Tags: jaws mandibles spines spikes translucent teeth
chiro-008-IRW.jpg-600.jpg Unique Identification: Chironomid
Taxon: Chironomidae
Site name: Berendon Pond
Light type: not specified
Magnification: 400x
Submitted by: Ian Walker
Notes: chironomid head capsule - subtribe Tanytarsina (For identification below family level, consult www.paleolab.ca/wwwguide/ , and specialty literature (e.g., D.R. Oliver & M.E. Roussel, 1983. Insects and Arachnids of Canada, Part 11. The genera of larval midges of Canada: Diptera, Chironomidae. Agriculture Canada, Ottawa).
Image Tags: brown amber shell carapace insect teeth spikes spines
chiro-004-IRW.jpg-600.jpg Unique Identification: Chironomid
Taxon: Chironomidae
Site name: Berendon Pond
Light type: not specified
Magnification: 100x
Submitted by: Ian Walker
Notes: Pseudodiamesa (Subfamily Pseudodiamesinae) - one half of head capsule - commonly associated very cold waters in arctic & alpine, or glacial meltwater (For identification below family level, consult www.paleolab.ca/wwwguide/ , and specialty literature (e.g., D.R. Oliver & M.E. Roussel, 1983. Insects and Arachnids of Canada, Part 11. The genera of larval midges of Canada: Diptera, Chironomidae. Agriculture Canada, Ottawa).
Image Tags: jagged teeth insect chironomid chitin spikes
chiro-049-IRW.jpg-600.jpg Unique Identification: Chironomid
Taxon: Chironomidae
Site name: Berendon Pond
Light type: not specified
Magnification: 400x
Submitted by: Ian Walker
Notes: chironomid head capsule - Corynoneura or Thienemanniella (For identification below family level, consult www.paleolab.ca/wwwguide/ , and specialty literature (e.g., D.R. Oliver & M.E. Roussel, 1983. Insects and Arachnids of Canada, Part 11. The genera of larval midges of Canada: Diptera, Chironomidae. Agriculture Canada, Ottawa).
Image Tags: translucent teeth spikes
chiro-014-IRW.jpg-600.jpg Unique Identification: Chironomid
Taxon: Chironomidae
Site name: Berendon Pond
Light type: not specified
Magnification: 400x
Submitted by: Ian Walker
Notes: 1/2 chironomid head capsule - Heterotrissocladius - usually associated with cool to cold water, and high oxygen (For identification below family level, consult www.paleolab.ca/wwwguide/ , and specialty literature (e.g., D.R. Oliver & M.E. Roussel, 1983. Insects and Arachnids of Canada, Part 11. The genera of larval midges of Canada: Diptera, Chironomidae. Agriculture Canada, Ottawa).
Image Tags: spines spikes teeth jaws
chiro-047-IRW.jpg-600.jpg Unique Identification: Chironomid
Taxon: Chironomidae
Site name: Berendon Pond
Light type: not specified
Magnification: 100x
Submitted by: Ian Walker
Notes: chironomid head capsule - Heterotrissocladius (For identification below family level, consult www.paleolab.ca/wwwguide/ , and specialty literature (e.g., D.R. Oliver & M.E. Roussel, 1983. Insects and Arachnids of Canada, Part 11. The genera of larval midges of Canada: Diptera, Chironomidae. Agriculture Canada, Ottawa).
Image Tags: jaws mandibles spikes spines teeth
chiro-048-IRW.jpg-600.jpg Unique Identification: Chironomid
Taxon: Chironomidae
Site name: Berendon Pond
Light type: not specified
Magnification: 400x
Submitted by: Ian Walker
Notes: chironomid head capsule - Heterotrissocladius (For identification below family level, consult www.paleolab.ca/wwwguide/ , and specialty literature (e.g., D.R. Oliver & M.E. Roussel, 1983. Insects and Arachnids of Canada, Part 11. The genera of larval midges of Canada: Diptera, Chironomidae. Agriculture Canada, Ottawa).
Image Tags: jaws mandibles spikes spines teeth
chiro-007-IRW.jpg-600.jpg Unique Identification: Chironomid
Taxon: Chironomidae
Site name: Berendon Pond
Light type: not specified
Magnification: 100x
Submitted by: Ian Walker
Notes: 2 chironomid head capsules (For identification below family level, consult www.paleolab.ca/wwwguide/ , and specialty literature (e.g., D.R. Oliver & M.E. Roussel, 1983. Insects and Arachnids of Canada, Part 11. The genera of larval midges of Canada: Diptera, Chironomidae. Agriculture Canada, Ottawa).
Image Tags: translucent
chiro-034-IRW.jpg-600.jpg Unique Identification: Chironomid
Taxon: Chironomidae
Site name: Berendon Pond
Light type: not specified
Magnification: 100x
Submitted by: Ian Walker
Notes: various chironomid bits: two small Stictochironomus head capsules at top and left, 1 large mandible at right, 1 large head capsule apotome with labrum & assorted smaller parts (e.g., premandibles, & various setae) (For identification below family level, consult www.paleolab.ca/wwwguide/ , and specialty literature (e.g., D.R. Oliver & M.E. Roussel, 1983. Insects and Arachnids of Canada, Part 11. The genera of larval midges of Canada: Diptera, Chironomidae. Agriculture Canada, Ottawa).
Image Tags: jaws mandibles spines spikes teeth
chiro-038-IRW.jpg-600.jpg Unique Identification: Chironomid
Taxon: Chironomidae
Site name: Berendon Pond
Light type: not specified
Magnification: 100x
Submitted by: Ian Walker
Notes: chironomid head capsule - Procladius (For identification below family level, consult www.paleolab.ca/wwwguide/ , and specialty literature (e.g., D.R. Oliver & M.E. Roussel, 1983. Insects and Arachnids of Canada, Part 11. The genera of larval midges of Canada: Diptera, Chironomidae. Agriculture Canada, Ottawa).
Image Tags: translucent spotted
chiro-012-IRW.jpg-600.jpg Unique Identification: Chironomid
Taxon: Chironomidae
Site name: Berendon Pond
Light type: not specified
Magnification: 400x
Submitted by: Ian Walker
Notes: chironomid head capsule - Limnophyes - usually associated with streams (For identification below family level, consult www.paleolab.ca/wwwguide/ , and specialty literature (e.g., D.R. Oliver & M.E. Roussel, 1983. Insects and Arachnids of Canada, Part 11. The genera of larval midges of Canada: Diptera, Chironomidae. Agriculture Canada, Ottawa).
Image Tags: spines spikes teeth translucent
chiro-030-IRW.jpg-600.jpg Unique Identification: Chironomid
Taxon: Chironomidae
Site name: Berendon Pond
Light type: not specified
Magnification: 100x
Submitted by: Ian Walker
Notes: chironomid head capsules - Procladius at top, Stictochironomus below (For identification below family level, consult www.paleolab.ca/wwwguide/ , and specialty literature (e.g., D.R. Oliver & M.E. Roussel, 1983. Insects and Arachnids of Canada, Part 11. The genera of larval midges of Canada: Diptera, Chironomidae. Agriculture Canada, Ottawa).
Image Tags: spines spikes teeth mandibles translucent teeth
chiro-016-IRW.jpg-600.jpg Unique Identification: Chironomid
Taxon: Chironomidae
Site name: Berendon Pond
Light type: not specified
Magnification: 100x
Submitted by: Ian Walker
Notes: chironomid head capsule - subtribe Tanytarsina (For identification below family level, consult www.paleolab.ca/wwwguide/ , and specialty literature (e.g., D.R. Oliver & M.E. Roussel, 1983. Insects and Arachnids of Canada, Part 11. The genera of larval midges of Canada: Diptera, Chironomidae. Agriculture Canada, Ottawa).
Image Tags: translucent mandibles jaws spines spikes teeth
chiro-027-IRW.jpg-600.jpg Unique Identification: Chironomid
Taxon: Chironomidae
Site name: Berendon Pond
Light type: not specified
Magnification: 100x
Submitted by: Ian Walker
Notes: chironomid head capsule - subtribe Tanytarsina (For identification below family level, consult www.paleolab.ca/wwwguide/ , and specialty literature (e.g., D.R. Oliver & M.E. Roussel, 1983. Insects and Arachnids of Canada, Part 11. The genera of larval midges of Canada: Diptera, Chironomidae. Agriculture Canada, Ottawa).
Image Tags: translucent mandibles jaws spines spikes teeth head
chiro-040-IRW.jpg-600.jpg Unique Identification: Chironomid
Taxon: Chironomidae
Site name: Berendon Pond
Light type: not specified
Magnification: 400x
Submitted by: Ian Walker
Notes: chironomid head capsule - Procladius, with focus on dorsomental teeth (For identification below family level, consult www.paleolab.ca/wwwguide/ , and specialty literature (e.g., D.R. Oliver & M.E. Roussel, 1983. Insects and Arachnids of Canada, Part 11. The genera of larval midges of Canada: Diptera, Chironomidae. Agriculture Canada, Ottawa).
Image Tags: jaws mandibles spines spikes translucent teeth
chiro-035-IRW.jpg-600.jpg Unique Identification: Chironomid
Taxon: Chironomidae
Site name: Berendon Pond
Light type: not specified
Magnification: 400x
Submitted by: Ian Walker
Notes: detail of parts associated with chironomid apotome with labrum & assorted smaller parts (e.g., premandibles, & various setae) (For identification below family level, consult www.paleolab.ca/wwwguide/ , and specialty literature (e.g., D.R. Oliver & M.E. Roussel, 1983. Insects and Arachnids of Canada, Part 11. The genera of larval midges of Canada: Diptera, Chironomidae. Agriculture Canada, Ottawa).
Image Tags: head legs spines
chiro-029-IRW.jpg-600.jpg Unique Identification: Chironomid
Taxon: Chironomidae
Site name: Berendon Pond
Light type: not specified
Magnification: 400x
Submitted by: Ian Walker
Notes: chironomid head capsule - Cricotopus? or Orthocladius? (For identification below family level, consult www.paleolab.ca/wwwguide/ , and specialty literature (e.g., D.R. Oliver & M.E. Roussel, 1983. Insects and Arachnids of Canada, Part 11. The genera of larval midges of Canada: Diptera, Chironomidae. Agriculture Canada, Ottawa).
Image Tags: spines spikes teeth mandibles translucent teeth
chiro-044-IRW.jpg-600.jpg Unique Identification: Chironomid
Taxon: Chironomidae
Site name: Berendon Pond
Light type: not specified
Magnification: 400x
Submitted by: Ian Walker
Notes: chironomid head capsule - Pseudodiamesa mentum and ventromentum (For identification below family level, consult www.paleolab.ca/wwwguide/ , and specialty literature (e.g., D.R. Oliver & M.E. Roussel, 1983. Insects and Arachnids of Canada, Part 11. The genera of larval midges of Canada: Diptera, Chironomidae. Agriculture Canada, Ottawa).
Image Tags: jaws mandibles spines spikes translucent teeth
chiro-006-IRW.jpg-600.jpg Unique Identification: Chironomid
Taxon: Chironomidae
Site name: Berendon Pond
Light type: not specified
Magnification: 100x
Submitted by: Ian Walker
Notes: chironomid head capsule fragment (For identification below family level, consult www.paleolab.ca/wwwguide/ , and specialty literature (e.g., D.R. Oliver & M.E. Roussel, 1983. Insects and Arachnids of Canada, Part 11. The genera of larval midges of Canada: Diptera, Chironomidae. Agriculture Canada, Ottawa).
Image Tags: translucent
chiro-019-IRW.jpg-600.jpg Unique Identification: Chironomid
Taxon: Chironomidae
Site name: Berendon Pond
Light type: not specified
Magnification: 400x
Submitted by: Ian Walker
Notes: chironomid head capsule - Hydrobaenus (For identification below family level, consult www.paleolab.ca/wwwguide/ , and specialty literature (e.g., D.R. Oliver & M.E. Roussel, 1983. Insects and Arachnids of Canada, Part 11. The genera of larval midges of Canada: Diptera, Chironomidae. Agriculture Canada, Ottawa).
Image Tags: jaws mandibles spines spikes teeth
chiro-028-IRW.jpg-600.jpg Unique Identification: Chironomid
Taxon: Chironomidae
Site name: Berendon Pond
Light type: not specified
Magnification: 100x
Submitted by: Ian Walker
Notes: chironomid head capsule - subfamily Tanypodinae (For identification below family level, consult www.paleolab.ca/wwwguide/ , and specialty literature (e.g., D.R. Oliver & M.E. Roussel, 1983. Insects and Arachnids of Canada, Part 11. The genera of larval midges of Canada: Diptera, Chironomidae. Agriculture Canada, Ottawa).
Image Tags: translucent
chiro-042-IRW.jpg-600.jpg Unique Identification: Chironomid
Taxon: Chironomidae
Site name: Berendon Pond
Light type: not specified
Magnification: 100x
Submitted by: Ian Walker
Notes: chironomid head capsule - Dicrotendipes mentum & ventromental plate (For identification below family level, consult www.paleolab.ca/wwwguide/ , and specialty literature (e.g., D.R. Oliver & M.E. Roussel, 1983. Insects and Arachnids of Canada, Part 11. The genera of larval midges of Canada: Diptera, Chironomidae. Agriculture Canada, Ottawa).
Image Tags: jaws mandibles spines spikes translucent teeth
chiro-045-IRW.jpg-600.jpg Unique Identification: Chironomid
Taxon: Chironomidae
Site name: Berendon Pond
Light type: not specified
Magnification: 400x
Submitted by: Ian Walker
Notes: chironomid head capsule - Parakiefferiella? (For identification below family level, consult www.paleolab.ca/wwwguide/ , and specialty literature (e.g., D.R. Oliver & M.E. Roussel, 1983. Insects and Arachnids of Canada, Part 11. The genera of larval midges of Canada: Diptera, Chironomidae. Agriculture Canada, Ottawa).
Image Tags: head hollow translucent
chiro-046-IRW.jpg-600.jpg Unique Identification: Chironomid
Taxon: Chironomidae
Site name: Berendon Pond
Light type: not specified
Magnification: 400
Submitted by: Ian Walker
Notes: diverse chironomid head capsules & fragments (For identification below family level, consult www.paleolab.ca/wwwguide/ , and specialty literature (e.g., D.R. Oliver & M.E. Roussel, 1983. Insects and Arachnids of Canada, Part 11. The genera of larval midges of Canada: Diptera, Chironomidae. Agriculture Canada, Ottawa).
Image Tags: translucent teeth
chiro-041-IRW.jpg-600.jpg Unique Identification: Chironomid
Taxon: Chironomidae
Site name: Berendon Pond
Light type: not specified
Magnification: 400x
Submitted by: Ian Walker
Notes: chironomid head capsule - Dicrotendipes mentum & ventromental plate (For identification below family level, consult www.paleolab.ca/wwwguide/ , and specialty literature (e.g., D.R. Oliver & M.E. Roussel, 1983. Insects and Arachnids of Canada, Part 11. The genera of larval midges of Canada: Diptera, Chironomidae. Agriculture Canada, Ottawa).
Image Tags: jaws mandibles spines spikes translucent teeth
chiro-013-IRW.jpg-600.jpg Unique Identification: Chironomid
Taxon: Chironomidae
Site name: Berendon Pond
Light type: not specified
Magnification: 100x
Submitted by: Ian Walker
Notes: chironomid head capsule - Limnophyes - usually associated with streams (For identification below family level, consult www.paleolab.ca/wwwguide/ , and specialty literature (e.g., D.R. Oliver & M.E. Roussel, 1983. Insects and Arachnids of Canada, Part 11. The genera of larval midges of Canada: Diptera, Chironomidae. Agriculture Canada, Ottawa).
Image Tags: spines spikes teeth translucent
chiro-032-IRW.jpg-600.jpg Unique Identification: Chironomid
Taxon: Chironomidae
Site name: Berendon Pond
Light type: not specified
Magnification: 400x
Submitted by: Ian Walker
Notes: chironomid mandible (For identification below family level, consult www.paleolab.ca/wwwguide/ , and specialty literature (e.g., D.R. Oliver & M.E. Roussel, 1983. Insects and Arachnids of Canada, Part 11. The genera of larval midges of Canada: Diptera, Chironomidae. Agriculture Canada, Ottawa).
Image Tags: jaws mandibles spines spikes teeth
chiro-015-IRW.jpg-600.jpg Unique Identification: Chironomid
Taxon: Chironomidae
Site name: Berendon Pond
Light type: not specified
Magnification: 100x
Submitted by: Ian Walker
Notes: 1/2 chironomid head capsule - Heterotrissocladius - usually associated with cool to cold water, and high oxygen (For identification below family level, consult www.paleolab.ca/wwwguide/ , and specialty literature (e.g., D.R. Oliver & M.E. Roussel, 1983. Insects and Arachnids of Canada, Part 11. The genera of larval midges of Canada: Diptera, Chironomidae. Agriculture Canada, Ottawa).
Image Tags: spines spikes teeth jaws translucent
chiro-005-IRW.jpg-600.jpg Unique Identification: Chironomid
Taxon: Chironomidae
Site name: Berendon Pond
Light type: not specified
Magnification: 100x
Submitted by: Ian Walker
Notes: apotome (back of head) of chironomid (For identification below family level, consult www.paleolab.ca/wwwguide/ , and specialty literature (e.g., D.R. Oliver & M.E. Roussel, 1983. Insects and Arachnids of Canada, Part 11. The genera of larval midges of Canada: Diptera, Chironomidae. Agriculture Canada, Ottawa).
Image Tags: leg tube
chiro-009-IRW.jpg-600.jpg Unique Identification: Chironomid
Taxon: Chironomidae
Site name: Berendon Pond
Light type: not specified
Magnification: 400x
Submitted by: Ian Walker
Notes: chironomid head capsule - Diamesa - typical of very cold running water (For identification below family level, consult www.paleolab.ca/wwwguide/ , and specialty literature (e.g., D.R. Oliver & M.E. Roussel, 1983. Insects and Arachnids of Canada, Part 11. The genera of larval midges of Canada: Diptera, Chironomidae. Agriculture Canada, Ottawa).
Image Tags: spines spikes teeth translucent
chiro-037-IRW.jpg-600.jpg Unique Identification: Chironomid
Taxon: Chironomidae
Site name: Berendon Pond
Light type: not specified
Magnification: 400x
Submitted by: Ian Walker
Notes: small chironomid head capsule (subtribe Tanytarsina) with various mouthparts (e.g., mandibles) and antennae more or less intact
Image Tags: translucent
chiro-017-IRW.jpg-600.jpg Unique Identification: Chironomid
Taxon: Chironomidae
Site name: Berendon Pond
Light type: not specified
Magnification: 400x
Submitted by: Ian Walker
Notes: chironomid mandible (For identification below family level, consult www.paleolab.ca/wwwguide/ , and specialty literature (e.g., D.R. Oliver & M.E. Roussel, 1983. Insects and Arachnids of Canada, Part 11. The genera of larval midges of Canada: Diptera, Chironomidae. Agriculture Canada, Ottawa).
Image Tags: translucent mandibles jaws spines spikes teeth
chiro-025-IRW.jpg-600.jpg Unique Identification: Chironomid
Taxon: Chironomidae
Site name: Berendon Pond
Light type: not specified
Magnification: 100x
Submitted by: Ian Walker
Notes: chironomid head capsule - Stictochironomus (For identification below family level, consult www.paleolab.ca/wwwguide/ , and specialty literature (e.g., D.R. Oliver & M.E. Roussel, 1983. Insects and Arachnids of Canada, Part 11. The genera of larval midges of Canada: Diptera, Chironomidae. Agriculture Canada, Ottawa).
Image Tags: head spines spikes teeth jaws mandibles teeth
Scenedesmus_sp_HK0010.jpg-600.jpg Unique Identification: Chlorophyte
Taxon: Scenedesmus sp.
Site name: Little Birch
Light type: not specified
Magnification: 400.0
Submitted by: Hedy Kling
Notes: 3 cells of Scenedesmus sp
Image Tags: chain green cells stacked colonial
chrysocyst_TwinLk_MN_40xBF_ME-600.jpg Unique Identification: Chrysophyte
Site name: Twin Lake
Light type: not specified
Magnification: not specified
Submitted by: Mark Edlund
Notes: These are chrysophyte cysts, a siliceous resting stage. In smear slides they often contain an air bubble, but some specimens in this image do not. If you look closely you will see a small pore that may have a collar or neck, and the cysts are often ornamented with ridges, spines, or patterned surfaces
Image Tags: transparent siliceous colorless circular spherical air-bubble pore chrysophyte cyst
scaled_chrysophyte_LkSupWI_100xDIC_ME-600.jpg Unique Identification: Chrysophyte
Taxon: Synurophyceae
Site name: Lake Superior, WI
Light type: not specified
Magnification: 100x
Submitted by: Mark Edlund
Notes: These are examples of siliceous scales that cover the cells of the scaled chrysophytes or the Synurophyceae. Patterns and shapes of the scales can be used to identify each species. Scales can be abundant in lakes sediments; however, the siliceous cysts or statocysts of chrysophytes are often more common.
Image Tags: siliceous transparent scale oval round spiny rimmed ornamented bristly
chrysocyst2_TwinLkMN_40xBF_ME-600.jpg Unique Identification: Chrysophyte
Site name: Twin Lake
Light type: not specified
Magnification: not specified
Submitted by: Mark Edlund
Notes: These are chrysophyte cysts, a siliceous resting stage. In smear slides they often contain an air bubble, but some specimens in this image do not. If you look closely you will see a small pore that may have a collar or neck, and the cysts are often ornamented with ridges, spines, or patterned surfaces
Image Tags: transparent siliceous colorless circular spherical air-bubble pore chrysophyte cyst
Chrysocyst3_TwinLkMN_40xBF_ME-600.jpg Unique Identification: Chrysophyte
Site name: Twin Lake
Light type: not specified
Magnification: not specified
Submitted by: Mark Edlund
Notes: These are chrysophyte cysts, a siliceous resting stage. In smear slides they often contain an air bubble, but some specimens in this image do not. If you look closely you will see a small pore that may have a collar or neck, and the cysts are often ornamented with ridges, spines, or patterned surfaces
Image Tags: transparent siliceous colorless circular spherical air-bubble pore chrysophyte cyst
image0193-600.jpg Unique Identification: Cladocera
Site name: Spectacle Lake
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: Andy Cohen
Notes: cladoceran. arthropod appendage cuticle (possibly antennae?)
Image Tags: none
Daphnia_01_pp_AB-600.jpg Unique Identification: Cladocera
Taxon: Daphnia sp.
Site name: Silver Lake, MN
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: Andy Breckenridge
Notes: daphnia, postabdominal claw
Image Tags: claw
bosmina_remain_HK0001.jpg-600.jpg Unique Identification: Cladocera
Taxon: Bosmina sp.
Site name: CLW2-Br007
Light type: not specified
Magnification: 400.0
Submitted by: Hedy Kling
Notes: Bosmina proboscis fragment
Image Tags: spine spike proboscis
Chydorus_HK0012.jpg-600.jpg Unique Identification: Cladocera
Taxon: Chydorus sp.
Site name: Gull Lake
Light type: not specified
Magnification: 100.0
Submitted by: Hedy Kling
Notes: Chydorus
Image Tags: translucent oval shell
Coccoliths_1xp1-600.jpg Unique Identification: Coccolithophore
Site name: not specified
Light type: Cross-Polarized Light
Magnification: not specified
Submitted by: Guy Rothwell
Notes: Note black interference crosses shown by each plate, plates
Image Tags: none
Cyano_cells_HK0013.jpg-600.jpg Unique Identification: Cyanobacteria
Taxon: cf. Microcystis sp.
Site name: Anka Lake
Light type: not specified
Magnification: 400.0
Submitted by: Hedy Kling
Notes: Cyanobacteria cf Microcystis cells
Image Tags: colonial cells green clumped fillament
cyanobacteria_pp_01-600.jpg Unique Identification: Cyanobacteria
Site name: Tanners
Light type: Plane-Polarized Light
Magnification: 400x
Submitted by: Amy Myrbo
Notes: Blue green algae
Image Tags: none
daphnia_ephippia_CTN12_2B_1P_1_jm_edit-600.jpg Unique Identification: Daphnia
Taxon: Daphnia sp.
Site name: Upper Sioux River wetland, MN
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: survival eggs of Daphnia spp. ovate, 0.5 -1 mm long; thin covering containing two dark eggs (sometimes one); marginal fringe
Image Tags: fringed thin
Staurastrum_sp_HK0012.jpg-600.jpg Unique Identification: Desmids
Taxon: Staurastrum sp.
Site name: Anka Lake
Light type: not specified
Magnification: 400.0
Submitted by: Hedy Kling
Notes: 1/2 of Staurastrum sp
Image Tags: drumstick ridged branched
cf_Cosmarium_emptyHK0005.jpg-600.jpg Unique Identification: Desmids
Taxon: cf. Cosmarium sp.
Site name: GLAD6-Bos04
Light type: not specified
Magnification: 400.0
Submitted by: Hedy Kling
Notes: cf Cosmarium sp green algae only cell wall
Image Tags: green cells clumped round
cf_Cosmarium_emptyHK0006.jpg-600.jpg Unique Identification: Desmids
Taxon: cf. Cosmarium sp.
Site name: GLAD6-Bos04
Light type: not specified
Magnification: 400.0
Submitted by: Hedy Kling
Notes: cf Cosmarium sp green algae 2-halfs
Image Tags: green cells clumped round nucleus
cf_Cosmarium_emptyHK0007.jpg-600.jpg Unique Identification: Desmids
Taxon: cf. Cosmarium sp.
Site name: GLAD6-Bos04
Light type: not specified
Magnification: 1000.0
Submitted by: Hedy Kling
Notes: cf Cosmarium sp green algae 2-halfs
Image Tags: cells round nucleus
cf_Cosmarium_emptyHK0008.jpg-600.jpg Unique Identification: Desmids
Taxon: cf. Cosmarium sp.
Site name: GLAD6-Bos04
Light type: not specified
Magnification: 400.0
Submitted by: Hedy Kling
Notes: cf Cosmarium sp green algae
Image Tags: green cells clumped round nucleus
TWTW-SLIDE2PP_01-600.jpg Unique Identification: Diatom
Site name: Twin
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: not specified
Notes: monospecific bloom; mixed with calcite
Image Tags: none
image0192-600.jpg Unique Identification: Diatom
Site name: Spectacle Lake
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: Andy Cohen
Notes: diverse diatom assemblage (littoral?)
Image Tags: none
Diatom_03_pp_AB-600.jpg Unique Identification: Diatom
Site name: Miscanti
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: Andy Breckenridge
Notes: diatom
Image Tags: none
Acanthoceras_spores_DIC100xME-600.jpg Unique Identification: Diatom
Taxon: Acanthoceras sp.
Site name: Spirit Lake, Iowa
Light type: not specified
Magnification: 100x
Submitted by: Mark Edlund
Notes: These are resting spores produced by the freshwater diatom Acanthoceras. The heavily silicified spores can be found in sediments; usually the lightly silicified vegetative valves of this diatom are not present. For more information see Edlund & Stoermer (1993. JOPL 9:55-61).
Image Tags: siliceous transparent cyst spore heavily-silicified diatom comma-shaped scalloped bipartite
diatom9chains_1592_40xBFME-600.jpg Unique Identification: Diatom
Site name: AuSable River
Light type: not specified
Magnification: not specified
Submitted by: Mark Edlund
Notes: Prominent in this image are two colonies of benthic chain-forming diatoms
Image Tags: transparent siliceous colorless ribbon-like chains diatom
diatom1_TwinLk_MN_63xdryBF_ME-600.jpg Unique Identification: Diatom
Site name: Twin Lake
Light type: not specified
Magnification: not specified
Submitted by: Mark Edlund
Notes: An assemblage of freshwater diatoms including planktonic and benthic forms.
Image Tags: transparent siliceous colorless many-shaped diatom benthic planktonic
diatom5_TwinLkMN30.2cm_BF63xME-600.jpg Unique Identification: Diatom
Site name: Twin Lake
Light type: not specified
Magnification: not specified
Submitted by: Mark Edlund
Notes: These split rings or circular structures are diatom girdle bands from centric diatoms
Image Tags: transparent siliceous colorless circular ring-shaped diatom girdle-bands
Diatom10Campy_1592_40xBFME-600.jpg Unique Identification: Diatom
Taxon: Campylodiscus sp.
Site name: AuSable River
Light type: not specified
Magnification: not specified
Submitted by: Mark Edlund
Notes: This diatom is the saddle-shaped genus Campylodiscus. There are different Campylodiscus species in freshwater compared to saline lakes
Image Tags: transparent siliceous colorless many-shaped saddle-shaped Pringle's diatom
Chaetoceras_spores_DevilLkND_100x_ME-600.jpg Unique Identification: Diatom
Taxon: Chaetoceras elmorei
Site name: Devils Lake ND
Light type: not specified
Magnification: 100x
Submitted by: Mark Edlund
Notes: This group of images shows various views of spores from the diatom Chaetoceros elmorei. Spores are produced by few inland diatoms. Spores are more heavily silicified than the vegetative cells and are often the only part of the diatom that is preserved in lake sediments. Chaetoceros spores are usually an indicator of saline conditions.
Image Tags: siliceous army-helmet transparent colorless oval saline spore heavily-silicified diatom
Diatom_02_pp_AB-600.jpg Unique Identification: Diatom
Site name: Lake Malawi
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: Andy Breckenridge
Notes: diatom, Aulacoseira
Image Tags: none
TWTW-SLIDE2CP_01-600.jpg Unique Identification: Diatom
Site name: Twin
Light type: Cross-Polarized Light
Magnification: not specified
Submitted by: not specified
Notes: monospecific bloom; mixed with calcite
Image Tags: none
diatom_Urosolenia_spore_100xBF_ME-600.jpg Unique Identification: Diatom
Taxon: Urosolenia sp.
Site name: Spirit Lake, Iowa
Light type: not specified
Magnification: 100x
Submitted by: Mark Edlund
Notes: These are resting spores produced by the freshwater diatom Urosolenia. They look very similar to chrysophyte cysts but are bipartite. The heavily silicified spores can be found in sediments; usually the lightly silicified vegetative valves of this diatom are not present. For more information see Edlund & Stoermer (1993. JOPL 9:55-61).
Image Tags: siliceous transparent cyst spore heavily-silicified rounded bipartite diatom
Aulacoseira_ambigua_(spore)_HK0015.jpg-600.jpg Unique Identification: Diatom
Taxon: Aulacoseira ambigua
Site name: Harriet
Light type: not specified
Magnification: 400.0
Submitted by: Hedy Kling
Notes: cell of A. ambigua appears to be making a spore
Image Tags: cylindrical chambered
image0176-600.jpg Unique Identification: Diatom
Site name: Malawi
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: Andy Cohen
Notes: Aulacoseira ooze with charcoal fragment
Image Tags: none
diatom_TwinLk_MN_40xBF_ME-600.jpg Unique Identification: Diatom
Site name: Twin Lake
Light type: not specified
Magnification: not specified
Submitted by: Mark Edlund
Notes: An assemblage of freshwater diatoms including planktonic and benthic forms.
Image Tags: transparent siliceous colorless many-shaped diatom benthic planktonic
Diatoms4_TwinLkMN5_40xBF_ME-600.jpg Unique Identification: Diatom
Site name: Twin Lake
Light type: not specified
Magnification: not specified
Submitted by: Mark Edlund
Notes: An assemblage of freshwater diatomsshowing benthic forms.
Image Tags: transparent siliceous colorless many-shaped long curved diatom benthic
Diatom_01_pp_AB-600.jpg Unique Identification: Diatom
Site name: Miscanti
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: Andy Breckenridge
Notes: diatom
Image Tags: none
diatom8_KekLk_40xBFME-600.jpg Unique Identification: Diatom
Taxon: Puncticulata lemanica
Site name: Kekakabic Lake
Light type: not specified
Magnification: not specified
Submitted by: Mark Edlund
Notes: This is a diatom prep that shows two Puncticulata lemanica specimens (the round diatoms) and many specimens of Tabellaria. Note that many of the specimens of Tabellaria are only the empty girdle bands.
Image Tags: transparent siliceous colorless circular ring-shaped round diatoms girdle-bands
diatom_layer_JS-600.jpg Unique Identification: Diatom
Site name: Mono
Light type: Plane-Polarized Light
Magnification: 100
Submitted by: Joe Smoot
Notes: elongate translucent grains are isotropic, algal bloom
Image Tags: none
image0182-600.jpg Unique Identification: Fish
Site name: Malawi
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: Andy Cohen
Notes: fish tooth
Image Tags: none
image0181-600.jpg Unique Identification: Fish
Site name: Malawi
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: Andy Cohen
Notes: bone fragment
Image Tags: none
Planktonic_forams_1_GR-600.jpg Unique Identification: Foraminifera
Site name: not specified
Light type: Plane-Polarized Light
Magnification: x10
Submitted by: Guy Rothwell
Notes: SIOCLMR 164G CC, planktonic
Image Tags: none
Benthic_forams_6_GR-600.jpg Unique Identification: Foraminifera
Site name: not specified
Light type: Plane-Polarized Light
Magnification: x10
Submitted by: Guy Rothwell
Notes: SIOCLMR 164G CC, radiolarian biogenic-silica centric-diatom benthic planktonic
Image Tags: none
Benthic_foram_1_GR-600.jpg Unique Identification: Foraminifera
Site name: not specified
Light type: Plane-Polarized Light
Magnification: x10
Submitted by: Guy Rothwell
Notes: SIOCLMR 164G CC, benthic
Image Tags: none
Foraminifera_3_GR-600.jpg Unique Identification: Foraminifera
Site name: not specified
Light type: Plane-Polarized Light
Magnification: x10
Submitted by: Guy Rothwell
Notes: SIOCLMR 164G CC, benthic planktonic radiolarian
Image Tags: none
Foraminifera_2_GR-600.jpg Unique Identification: Foraminifera
Site name: not specified
Light type: Plane-Polarized Light
Magnification: x10
Submitted by: Guy Rothwell
Notes: SIOCLMR 164G CC, benthic planktonic radiolarian
Image Tags: none
Foraminifera_1ppl1-600.jpg Unique Identification: Foraminifera
Site name: not specified
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: Guy Rothwell
Notes: Entire foraminifera tests and test fragments, Tests Test-fragments
Image Tags: none
Foraminifera_1_GR-600.jpg Unique Identification: Foraminifera
Site name: not specified
Light type: Plane-Polarized Light
Magnification: x10
Submitted by: Guy Rothwell
Notes: SIOCLMR 164G CC, planktonic benthic
Image Tags: none
Foraminifera_1xp3-600.jpg Unique Identification: Foraminifera
Site name: not specified
Light type: Cross-Polarized Light
Magnification: not specified
Submitted by: Guy Rothwell
Notes: Note black interference crosses seen on each test chamber, Tests Test-fragments
Image Tags: none
Benthic_forams_5_GR-600.jpg Unique Identification: Foraminifera
Site name: not specified
Light type: Plane-Polarized Light
Magnification: x10
Submitted by: Guy Rothwell
Notes: SIOCLMR 164G CC, benthic
Image Tags: none
Benthic_foram_4_GR-600.jpg Unique Identification: Foraminifera
Site name: not specified
Light type: Plane-Polarized Light
Magnification: x10
Submitted by: Guy Rothwell
Notes: SIOCLMR 164G CC, benthic
Image Tags: none
Benthic_forams_2_GR-600.jpg Unique Identification: Foraminifera
Site name: not specified
Light type: Plane-Polarized Light
Magnification: x10
Submitted by: Guy Rothwell
Notes: SIOCLMR 164G CC, benthic radiolaria
Image Tags: none
Benthic_forams_3_GR-600.jpg Unique Identification: Foraminifera
Site name: not specified
Light type: Plane-Polarized Light
Magnification: x10
Submitted by: Guy Rothwell
Notes: SIOCLMR 164G CC, benthic radiolaria sponge-spicules planktonic
Image Tags: none
image0186-600.jpg Unique Identification: Gastropod
Site name: Peten Itza
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: Andy Cohen
Notes: pulmonate (probably planorbid) shell fragment
Image Tags: none
image0187-600.jpg Unique Identification: Gastropod
Site name: Peten Itza
Light type: Cross-Polarized Light
Magnification: not specified
Submitted by: Andy Cohen
Notes: pulmonate (probably planorbid) shell fragments (2)
Image Tags: none
chiro-022-IRW.jpg-600.jpg Unique Identification: Insect
Site name: Berendon Pond
Light type: not specified
Magnification: 100x
Submitted by: Ian Walker
Notes: unknown insect leg segment
Image Tags: brown amber shell carapace insect leg tube
bug_eye_HK0002.jpg-600.jpg Unique Identification: Insect
Site name: CLW2-Br007
Light type: not specified
Magnification: 400.0
Submitted by: Hedy Kling
Notes: insect eye
Image Tags: lens compound-eye
image0194-600.jpg Unique Identification: Insect
Site name: Spectacle Lake
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: Andy Cohen
Notes: probably chaoborid mandibular or anal fan
Image Tags: none
chiro-021-IRW.jpg-600.jpg Unique Identification: Insect
Site name: Berendon Pond
Light type: not specified
Magnification: 100x
Submitted by: Ian Walker
Notes: unknown insect mandible
Image Tags: brown amber shell carapace insect mandibles spikes jaws
chiro-033-IRW.jpg-600.jpg Unique Identification: Insect
Site name: Berendon Pond
Light type: not specified
Magnification: 400x
Submitted by: Ian Walker
Notes: insect compound eye
Image Tags: compound-eye lens translucent
Unique Identification: Insect
Site name: not specified
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: AM
Notes: none
Image Tags: none
chiro-011-IRW.jpg-600.jpg Unique Identification: Insect
Site name: Berendon Pond
Light type: not specified
Magnification: 100x
Submitted by: Ian Walker
Notes: Mandible of unknown insect
Image Tags: brown amber shell carapace insect teeth spikes spines mandible jaw
Appendage-03_JB-600.jpg Unique Identification: Insect
Site name: Steele Lake
Light type: not specified
Magnification: 400.0
Submitted by: Jordon Bright
Notes: portion of insect leg
Image Tags: jointed amber leg
chiro-023-IRW.jpg-600.jpg Unique Identification: Insect
Site name: Berendon Pond
Light type: not specified
Magnification: 400x
Submitted by: Ian Walker
Notes: unknown insect leg segment
Image Tags: brown amber shell carapace insect leg tube scales
chiro-010-IRW.jpg-600.jpg Unique Identification: Insect
Site name: Berendon Pond
Light type: not specified
Magnification: 100x
Submitted by: Ian Walker
Notes: Mandible of unknown insect
Image Tags: brown amber shell carapace insect teeth spikes spines mandible jaw
insect_eggs_OMAA_RIPO12_3A_1P_1_jm_edit-600.jpg Unique Identification: Insect
Site name: Rice Portage Lake, Carlton County, MN
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: unknown insect eggs; globose to disk shaped, < 0.5 mm; shiny, smooth, hollow structures; chitinous when viewed under plane polarized light
Image Tags: chitinous shiny smooth glabrous round globose biconvex fringed
image0171-600.jpg Unique Identification: Insect
Site name: Great Salt Lake
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: Andy Cohen
Notes: Ephydra (brine fly) proleg claw
Image Tags: none
chiro-018-IRW.jpg-600.jpg Unique Identification: Insect
Site name: Berendon Pond
Light type: not specified
Magnification: 100x
Submitted by: Ian Walker
Notes: insect head capsule - possibly from a tipulid (cranefly)
Image Tags: brown amber shell carapace insect translucent
clay_with_diatoms_and_insect_part_JS-600.jpg Unique Identification: Insect
Site name: Pyramid
Light type: Plane-Polarized Light
Magnification: 400
Submitted by: Joe Smoot
Notes: clay matrix, dark clots are fecal pellets (chironimid?), diatoms and mandible
Image Tags: none
chiro-020-IRW.jpg-600.jpg Unique Identification: Insect
Site name: Berendon Pond
Light type: not specified
Magnification: 100x
Submitted by: Ian Walker
Notes: unknown insect mandible
Image Tags: brown shell carapace insect mandibles spikes spines jaws
glomus_OMAA_RIPO12_3A_1P_1_jm_2_edit-600.jpg Unique Identification: Mycorrhizae
Taxon: Glomus
Site name: Rice Portage Lake, Carlton County, MN
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: globose, variable in size from 0.1-1 mm in diameter; white to yellow brown, though most commonly pale yellow; hyphae (filamentous fungal structures) sometime attached, or attachment scars visible
Image Tags: globose filamentous yellow pale
Ostracode_01_pp_AB-600.jpg Unique Identification: Ostracode
Site name: Campbell Lake
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: Andy Breckenridge
Notes: ostracode, ostracod, calcite
Image Tags: none
ostracode_with_diatom_JS-600.jpg Unique Identification: Ostracode
Site name: NF-II-2
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: Joe Smoot
Notes: high relief material in mound shape with straight edge, diatom on top
Image Tags: none
Ostracode-02_JB-600.jpg Unique Identification: Ostracode
Site name: Titicaca
Light type: not specified
Magnification: 400.0
Submitted by: Jordon Bright
Notes: juvenile valve infilled with sediment
Image Tags: clear oval shell
ostracod_02_cp_BVG-600.jpg Unique Identification: Ostracode
Site name: Negro Francisco
Light type: Cross-Polarized Light
Magnification: 100
Submitted by: Blas Valero
Notes: none
Image Tags: none
10-16_ostracode_shell_fragment_xp_JS-600.jpg Unique Identification: Ostracode
Site name: NF-II-2
Light type: Cross-Polarized Light
Magnification: not specified
Submitted by: Joe Smoot
Notes: shell fragment in xp, ostracode ornamentation
Image Tags: none
ostracod_01_cp_BVG-600.jpg Unique Identification: Ostracode
Site name: Chungara
Light type: Cross-Polarized Light
Magnification: 100
Submitted by: Blas Valero
Notes: none
Image Tags: none
CHI-HL06-1B-2U-2_ostracode_hash_1_pp-600.jpg Unique Identification: Ostracode
Site name: Hurleg Lake
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: not specified
Notes: none
Image Tags: none
Ostracode-01_JB-600.jpg Unique Identification: Ostracode
Site name: Titicaca
Light type: not specified
Magnification: 400.0
Submitted by: Jordon Bright
Notes: juvenile valve infilled with sediment
Image Tags: clear oval shell
Ostracode_01_xp_AB-600.jpg Unique Identification: Ostracode
Site name: Campbell Lake
Light type: Cross-Polarized Light
Magnification: not specified
Submitted by: Andy Breckenridge
Notes: ostracode, ostracod, calcite
Image Tags: none
ostracod_01_pp_BVG-600.jpg Unique Identification: Ostracode
Site name: Chungara
Light type: Plane-Polarized Light
Magnification: 100
Submitted by: Blas Valero
Notes: none
Image Tags: none
ostracod_02_pp_BVG-600.jpg Unique Identification: Ostracode
Site name: Negro Francisco
Light type: Plane-Polarized Light
Magnification: 100
Submitted by: Blas Valero
Notes: none
Image Tags: none
ostracode_shell_fragment_JS-600.jpg Unique Identification: Ostracode
Site name: NF-II-2
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: Joe Smoot
Notes: Shell fragment with ornamentation
Image Tags: none
QH_ostracode_pp-600.jpg Unique Identification: Ostracode
Site name: Lake Qinghai
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: not specified
Notes: none
Image Tags: none
QH_ostracode_cp-600.jpg Unique Identification: Ostracode
Site name: Lake Qinghai
Light type: Cross-Polarized Light
Magnification: not specified
Submitted by: not specified
Notes: none
Image Tags: none
QH_ostracode_close_up_cp-600.jpg Unique Identification: Ostracode
Site name: Lake Qinghai
Light type: Cross-Polarized Light
Magnification: not specified
Submitted by: not specified
Notes: none
Image Tags: none
CHI-HL06-1B-2U-2_ostracode_hash_1_xp-600.jpg Unique Identification: Ostracode
Site name: Hurleg Lake
Light type: Cross-Polarized Light
Magnification: not specified
Submitted by: not specified
Notes: none
Image Tags: none
phacotus_xp_01-600.jpg Unique Identification: Phacotus
Site name: Tanners
Light type: Cross-Polarized Light
Magnification: 400x
Submitted by: Amy Myrbo
Notes: none
Image Tags: none
TWTW-SLIDE5CP_01-600.jpg Unique Identification: Phacotus
Site name: Twin
Light type: Cross-Polarized Light
Magnification: not specified
Submitted by: not specified
Notes: small rhombs, Phacotus present
Image Tags: none
TWTW-SLIDE5PP_01-600.jpg Unique Identification: Phacotus
Site name: Twin
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: Amy Myrbo
Notes: small rhombs, Phacotus present
Image Tags: none
phacotus_pp_01-600.jpg Unique Identification: Phacotus
Site name: Tanners
Light type: Plane-Polarized Light
Magnification: 400x
Submitted by: Amy Myrbo
Notes: none
Image Tags: none
EYASI-phytolith4-600.jpg Unique Identification: Phytolith
Site name: Lake Eyasi
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: not specified
Notes: none
Image Tags: none
EYASI-phytolith2-600.jpg Unique Identification: Phytolith
Site name: Lake Eyasi
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: not specified
Notes: none
Image Tags: none
EYASI-phytolith1-600.jpg Unique Identification: Phytolith
Site name: Lake Eyasi
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: not specified
Notes: none
Image Tags: none
GLAD6-BOS04-3C-2H-1_10.9cm_phyto_40x_cp-600.jpg Unique Identification: Phytolith
Site name: Lake Bosumtwi
Light type: Cross-Polarized Light
Magnification: 400
Submitted by: Jess Rodysill
Notes: none
Image Tags: none
phytolith_pp_01-600.jpg Unique Identification: Phytolith
Site name: Tanners
Light type: Plane-Polarized Light
Magnification: 400x
Submitted by: Amy Myrbo
Notes: none
Image Tags: none
EYASI-phytolith3-600.jpg Unique Identification: Phytolith
Site name: Lake Eyasi
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: not specified
Notes: none
Image Tags: none
phytolith_xp_01-600.jpg Unique Identification: Phytolith
Site name: Tanners
Light type: Cross-Polarized Light
Magnification: 400x
Submitted by: Amy Myrbo
Notes: none
Image Tags: none
GLAD6-BOS04-3C-2H-1_10.9cm_phyto_40x_pp-600.jpg Unique Identification: Phytolith
Site name: Lake Bosumtwi
Light type: Plane-Polarized Light
Magnification: 400
Submitted by: Jess Rodysill
Notes: none
Image Tags: none
GEGO-EMB11-3C-1P-1_42-43cm_nonsph_trans_40x_pp-600.jpg Unique Identification: Plant
Site name: Embarrass River
Light type: Plane-Polarized Light
Magnification: 400
Submitted by: Jess Rodysill
Notes: none
Image Tags: none
pollen_and_moss_material_HK0010.jpg-600.jpg Unique Identification: Plant
Site name: FUM-CRLA07
Light type: Plane-Polarized Light
Magnification: 400.0
Submitted by: Hedy Kling
Notes: pine pollen grain and moss tissue
Image Tags: cells clumped sheet platey
EYASI-plant-600.jpg Unique Identification: Plant
Site name: Lake Eyasi
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: not specified
Notes: none
Image Tags: none
GEGO-EMB11-3C-1P-1_42-43cm_OMbiref_40x_pp-600.jpg Unique Identification: Plant
Site name: Embarrass River
Light type: Plane-Polarized Light
Magnification: 400
Submitted by: Jess Rodysill
Notes: none
Image Tags: none
vascular-org-600.jpg Unique Identification: Plant
Site name: not specified
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: Amy Myrbo
Notes: none
Image Tags: brown cellular
GEGO-EMB11-3C-1P-1_42-43cm_OMbiref_40x_cp-600.jpg Unique Identification: Plant
Site name: Embarrass River
Light type: Cross-Polarized Light
Magnification: 400
Submitted by: Jess Rodysill
Notes: none
Image Tags: none
GEGO-EMB11-3C-1P-1_42-43cm_nonsph_trans_40x_cp-600.jpg Unique Identification: Plant
Site name: Embarrass River
Light type: Cross-Polarized Light
Magnification: 400
Submitted by: Jess Rodysill
Notes: none
Image Tags: none
Solidago_gigantea_seed_417_jm_edit_2-600.jpg Unique Identification: Plant Macrofossil
Taxon: Solidago gigantea
Site name: Lake Carlson, Dakota County, MN
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: oblong-cylindric, 1-2 mm long with tapering base; pubescent; pappus (short white bristles) may or may not be present in fossils
Image Tags: terrestrial seed dateable pappus pubescent oblong bristled hairy
Ostrya_virginiana_involucre_2849_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Ostrya virginiana
Site name: Peninsula State Park, Door County, WI
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: obovate 1-3 cm, enclosing seed, slightly inflated; bristly at base
Image Tags: seed terrestrial dateable veined inflated
Rorippa_palustris_seed_2621_jm_edit_2-600.jpg Unique Identification: Plant Macrofossil
Taxon: Rorippa palustris
Site name: Three Corner Pond, Dickenson County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: roundish-ovate (unlike others in family), less than 0.5 mm; reticulate dimpled
Image Tags: terrestrial seed dateable reticulate bumpy colliculate
Pontederia_cordata_fruit_2449_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Pontederia cordata
Site name: Swan Lake, Johnson County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: triangular, 5-10 mm long; three chambered, only one chamber develops seed;ridged; horned at base
Image Tags: emergent date-with-caution
Echinochloa_muricata_floret_3028_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Echinochloa muricata
Site name: Muscotah Marsh, Kansas
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: obovate, 2.5-3.5 mm long; spikelet 3-4 mm long; awn 3-10 mm long, sometimes up to 25 mm long
Image Tags: obovate terrestrial bristled dateable seed awned
Linum_striatum_seed_3084_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Linum striatum
Site name: Early County, GA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: wedge shaped, like narrow sector of sphere, 1-2 mm long; one side nearly straight
Image Tags: terrestrial seed dateable semicircular wedge-shaped
Rumex_occidentalis_seed_1563_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Rumex occidentalis
Site name: dry marsh north of Wing, Burleigh County, ND
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: triangular, sides slightly convex, 1-2 mm; smooth, shiny; embryo attached to one side (rather than to a corner as in Polygonum)
Image Tags: seed terrestrial dateable glabrous smooth trigonous
potamogeton_embryo_OMAA_RIPO12_3A_1P_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Potamogeton sp.
Site name: Rice Portage Lake, Carlton County, MN
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: subfossil embryo; ear-shaped; small size suggests that embryo is immature; connections to outer covering visible in image
Image Tags: seed coiled submerged do-not-date subfossilized ear-shaped
Carex_tribuloides_achene_755_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Carex tribuloides
Site name: Blackhawk County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: biconvex (lens shaped), 1.5 mm long, 0.5-0.75 mm wide
Image Tags: emergent date-with-caution seed biconvex style-persistent
Stellaria_media_seed_2869_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Stellaria media
Site name: Baker window well, Coralville, Johnson County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: orbicular, ~1 mm long; pinched hilum (seed base); covered in angular-rounded tubercles (warty bumps); fewer tubercles relative to other spp. In family
Image Tags: seed warty tuberculate terrestrial dateable bumpy hilum-conspicuous
Triodanis_perfoliata_seed_124_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Triodanis perfoliata
Site name: Williams Prairie, Johnson County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: compressed elliptic, biconvex, less than 0.5 mm long; glossy
Image Tags: terrestrial dateable seed elliptic biconvex smooth glabrous
Carpinus_caroliniana_involucre_abaxial_91_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Carpinus caroliniana
Site name: Stonington, New London County, CT
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: 2-3 cm halbard shaped with basal lobes; coarsely toothed, especially so along one side of center lobe
Image Tags: leaf terrestrial dateable toothed lobed
Polygonum_scandens_seed_2740_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Polygonum scandens
Site name: Finkbine bike trail, Johnson County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: triangular in cross section, ~ 4 mm long, ~3.5 mm wide at widest point; smooth and shiny; perianth (outer covering) most likely not present in sediment samples
Image Tags: seed terrestrial dateable trigonous glabrous smooth
Zizania_aquatica_spikelet_1094_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Zizania aquatica
Site name: St. Louis, MO
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: floret awl-shaped, 1-2 cm long, tapering to an awn 3-6 cm long; seed cylyndric, 1-2 cm long
Image Tags: emergent date-with-caution seed awned
Eutrochium_maculatum_seed_2076_jm_edit_2-600.jpg Unique Identification: Plant Macrofossil
Taxon: Eupatorium maculatum
Site name: Busching Mound Springs, Bremer County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: oblong, tapering to base, 2-4 mm long, 5 angled; speckled with small red dots; coarse, white pappus may or may not be preserved in sediment
Image Tags: terrestrial seed dateable oblong linear speckled pappus bristled
Polygonum_lapathifolium_seed_1536_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Polygonum lapathifolium
Site name: Little Storm Lake, Buena Vista County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: lens shaped, 2-3 mm long; smooth, shiny
Image Tags: seed emergent terrestrial date-with-caution biconvex bistigmatic stigmas-persistent glabrous smooth
Lycopus_americanus_nutlet_2048_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Lycopus americanus
Site name: lower Finkbine wetland, Johnson County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: obovate to compressed triangular, 1-2 mm long; white mouth at seed attachment base; globules on inner face; globules and endosperm often missing in fossil specimens
Image Tags: seed terrestrial dateable obovate base-conspicuous hilum-conspicuous
Myriophyllum_spicatum_seed_2055_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Myriophyllum spicatum
Site name: Devil's Lake, Sauk County, WI
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: none
Image Tags: seed submerged do-not-date obovate wedge-shaped
Andromeda_glaucophylla_fruit_3043_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Andromeda glaucophlla
Site name: Van Meer Bog, Alger County, MI
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: rounded, 5 sectioned capsule, ~5 mm wide; indented top; style persistent at top of capsule
Image Tags: terrestrial dateable round ribbed globose indented style-persistent
Populus_tremuloides_seed_MNMN_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Populus tremuloides
Site name: Fond du Lac Reservation
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: ovate, minute, 0.5-0.8 mm; covered in white hairs; conspicuous white-light yellow base
Image Tags: ovate hairy seed terrestrial dateable comose base-conspicuous
Platanus_occidentalis_seed_1485_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Platanus occidentalis
Site name: Boulder, Boulder County, CO
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: lanceolate, ~8-9 x 1-1.5 x 1 mm; tuft of stiff hairs pointed upward from base (oriented as top in image); style base persistent (located on bottom of image)
Image Tags: seed terrestrial dateable lanceolate hairy bristled pappus style-base-persistent
Potentilla_anserina_seed_1695_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Potentilla anserina
Site name: Sheboygan County, WI
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: reniform with a straight edge; 1-1.5 mm long; seam bisecting arched side of seed
Image Tags: seed terrestrial emergent date-with-caution reniform arched indented
Alnus_incana_seed_70_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Alnus incana
Site name: gravel bar in Yukon River at Whitehorse, Yukon, Canada
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: winged on margins, narrower than body; elliptic to obovate, irregular shaped; 2-4 mm long; wings may be damaged/missing in macrofossil samples.
Image Tags: seed terrestrial style-base-persistent
Nuphar_advena_seed_1347_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Nuphar advena
Site name: Cedar Rapids, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: ellipsoid to obovoid, 3-5 mm long, 2-3 mm wide; rounded on one side and compressed-angled on other; circular hole at base; yellow-brown; thick walled
Image Tags: floating-leaved seed date-with-caution
Zizania_palustris_seed_MNMN_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Zizania palustris
Site name: St. Louis, MO
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: floret awl-shaped, 1-2 cm long, tapering to an awn 3-6 cm long; seed oblong, 1-2 cm long
Image Tags: emergent date-with-caution seed oblong hilum-conspicuous
Betula_papyrifera_seed_3039_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Betula papyrifera
Site name: SE side of Green Lake, Kandiyohi County, MN
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: winged, 1.5-3 mm long, nutlet 0.5-1 mm wide, wings slightly wider than nutlet; wings may be damaged/missing in subfossil samples
Image Tags: seed terrestrial dateable winged obovate hairy pubescent stigmas-persistent
Carex_jamesii_achene_634_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Carex jamesii
Site name: Van Buren County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: rounded trigonous, 1.8-2.3 mm long; weak reticulate texture; conspicuos style base (top of seed) rounded with indent
Image Tags: terrestrial dateable seed trigonous reticulate style-base-persistent
Betula_pumila_leaf_top_77_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Betula pumila
Site name: Devlin's Park, Boulder, CO
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: adaxial (top) surface; rounded to obovate, 2-4 cm long, 1-3 cm wide, coarsely toothed margins, teeth may be blunt or sharp; petioles 3-6 mm long.
Image Tags: leaf terrestrial dateable reticulate toothed
Cryptotaenia_canadensis_seed_2758_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Cryptotaenia canadensis
Site name: Rochester Cemetary, in shade of oak trees, Cedar County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: compressed-oblong, 5-6 mm long, ribbed, style persistent
Image Tags: terrestrial dateable seed oblong ribbed style-persistent
Typha_angustifolia_seed_comose_1902_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Typha angustifolia
Site name: U.S.A.
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: oblong-elliptic, elongate, 0.8-1 mm long; whorled white pappus may be present; small, conical nipple on truncate end
Image Tags: emergent date-with-caution seed pappus hairy speckled style-persistent
Caltha_palustris_seed_1624_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Caltha palustris
Site name: Williams Prairie, Johnson County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: elliptic, ~2 mm long; cellular reticulate; light, corky texture
Image Tags: seed elliptic emergent terrestrial date-with-caution reticulate
Cyperus_odoratus_achene_3012_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Cyperus odoratus
Site name: Dickinson County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: brown, 3 angled, 1-2 mm long, up to 0.5 mm wide at broad end
Image Tags: seed ovate emergent date-with-caution trigonous reticulate
Picea_glauca_seed_MNMN_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Picea glauca
Site name: not specified
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: biconvex, 2-3 mm long; wing 5-8 mm long
Image Tags: seed terrestrial dateable biconvex ovate winged
Juncus_pelocarpus_seed_1174_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Juncus pelocarpus
Site name: Jasper County, IN
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: ovate, 0.3-0.5 mm long; dark terminal appendage at top of seed; cellular reticulations clearly visible in cell wall
Image Tags: seed emergent date-with-caution reticulate elliptic ovate
Hypericum_pyramidatum_seed_1129_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Hypericum pyramidatum
Site name: DuBuque County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: oblong-cylindric, 0.5-1 mm; reticulate surface; marked by lengthwise line; pointed it at one end
Image Tags: seed emergent date-with-caution reticulate
Hippuris_vulgaris_seed_1107_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Hippuris vulgaris
Site name: U.S.A.
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: oblong-cylindric to elliptic, ~2 mm long, 1 mm wide; thick, soft-woody wall
Image Tags: seed elliptic woody emergent date-with-caution
Chamaedaphne_calyculata_leaf_abaxial_896_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Chamaedaphne calyculata
Site name: Hubbard County, MN
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: abaxial (bottom) side shown; oval, 1-5 cm long and 3-15 mm wide; tips may be rounded or pointed; leathery; short petioles; margins may be entire or with rounded teeth
Image Tags: leaf terrestrial dateable reticulate serrate elliptic
Pontederia_cordata_seed_2449_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Pontederia cordata
Site name: Swan Lake, Johnson County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: ovate-elliptic, 3-4 mm; 20-25 lengthwise lines (not visible in imaged specimens); top of seed depressed
Image Tags: seed emergent indented date-with-caution
Abies_balsamea_needle_1398-600.jpg Unique Identification: Plant Macrofossil
Taxon: Abies balsamea
Site name: St.Louis County, MN
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: Abaxial (bottom) surface pictured on top, adaxial (top) surface below. Base of needle on righthand side of photograph. Note blunt tip w/small notch. Flat in cross section, twisted at base. May be 12-25 mm long.
Image Tags: leaf needle terrestrial dateable linear blunt emarginate
Echinochloa_muricata_seed_3028_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Echinochloa muricata
Site name: Muscotah Marsh, Kansas
Light type: Reflected Light
Magnification: 8.0
Submitted by: Jimmy Marty
Notes: ovate, 2.5-3.5 mm long; acutely tipped; spikelet 3-4 mm long; awn 3-10 mm long, sometimes up to 25 mm long
Image Tags: terrestrial dateable seed ovate acuminate glabrous smooth
Ulmus_americana_bud_scale_2908_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Ulmus americana
Site name: Boulder, Boulder County, CO
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: buds glabrous
Image Tags: bud-scale terrestrial dateable glabrous smooth
Utricularia_vulgaris_seed_2497_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Utricularia vulgaris
Site name: Three Corner Pond, Dickinson County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: angular 5-10 sided, ~ 0.5 mm long; reticulate pattern of cell wall clearly visible
Image Tags: seed angular free-floating do-not-date reticulate
Fagus_grandifolia_seed_2906_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Fagus grandifolia
Site name: Pt. Beach State Park, Door County, WI
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: sharply triangular, 4 sided, 4-10 mm long
Image Tags: seed terrestrial dateable four-sided
Scirpus_fluviatilis_achene_3017_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Scirpus fluviatus
Site name: dry swale near Green Lake, Kandiyohi County, MN
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: rounded trigonous, 3-5 mm long; beak up to 0.5 mm long; bristled
Image Tags: emergent date-with-caution bristled beaked seed trigonous rostrate
Echinochloa_crus-galli_floret_2609_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Echinochloa crus-galli
Site name: Three Corner Pond, Dickenson County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: elliptic-ovate, 2.5-3.5 mm long; awn may or may not be present; awn 2-4 cm long
Image Tags: terrestrial dateable seed awned bristled ovate
Carpinus_caroliniana_seed_91_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Carpinus caroliniana
Site name: Stonington, New London County, CT
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: ovate-lenticular, ~ 2.7 x 2.4 x 1.2 mm; 3 or 4 longitudinal ridges/ribs on both faces in addition to ribs along margins (as opposed to smooth surface of Ostrya); brownish, papery lining inside of wall
Image Tags: seed terrestrial dateable ovate ribbed
Leersia_oryzoides_caryopsos_1047_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Leersia oryzoides
Site name: Boulder County, CO
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: compressed obovate, 2-3.5 mm long; linear hilum
Image Tags: seed terrestrial dateable obovate
Larix_laricina_seed_1411_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Larix laricina
Site name: St.Louis County, MN
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: Winged, wing may be damaged/missing from macrofossils.
Image Tags: seed terrestrial winged dateable
aquatic_moss_RIPO_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Bryopsida
Site name: Rice Portage Lake, Carlton County, MN
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: fragile, dark stem; foliar scars alternate, formed from basal remains leaves; leaves acuminate (tapering to a point) translucent
Image Tags: aquatic-moss submerged do-not-date acuminate tapered subfossilized
Rudbeckia_triloba_seed_3107_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Rudbeckia triloba
Site name: Baker land, Cedar County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: oblong, tapering slightly to base; 2-2.5 mm long; 4 sided
Image Tags: terrestrial dateable seed oblong four-sided striate
Prunus_serotina_twig_2864_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Prunus serotina
Site name: Johnson County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: none
Image Tags: twig bud terrestrial dateable
Zannichellia_palustris_seed_2034_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Zannichellia palustris
Site name: U.S.A.
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: arched-oblong, body 2-3 mm long; flattish; stalked at one end, style base persisting on other; spinelike projections along each edge of seed
Image Tags: seed submerged do-not-date spiny style-persistent
Eupatorium_purpureum_seed_2088_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Eupatorium purpureum
Site name: Turkey Creek Road, Johnson County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: oblong, tapering to base, 3.5-4.5 mm long, indistinctly 5 sided; speckled with small brown-red dots; white base; coarse, white pappus may or may not be preserved in sediment
Image Tags: terrestrial dateable seed oblong ridged speckled pappus bristled
Acer_saccharinum_seed_athens_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Acer saccharinum
Site name: USA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: fruit 3-5 cm long; seeds 5-10 mm in diameter
Image Tags: fruit seed terrestrial dateable
Chamaedaphne_calyculata_leaf_adaxial_896_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Chamaedaphne calyculata
Site name: Hubbard County, MN
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: adaxial (top) side shown; oval, 1-5 cm long and 3-15 mm wide; tips may be rounded or pointed; leathery; short petioles; margins may be entire or with rounded teeth
Image Tags: leaf terrestrial dateable elliptic reticulate serrate
Alisma_subcordatum_seed_JohnsonCo_1975_jm-600.jpg Unique Identification: Plant Macrofossil
Taxon: Alisma subcordatum
Site name: Johnson County, IA
Light type: Reflected Light
Magnification: 8.0
Submitted by: Jimmy Marty
Notes: elliptic, 1.5-3 mm long; differentiated from Sagittaria by marginal groove and lack of beak
Image Tags: emergent date-with-caution seed grooved striate
Alnus_viridis_catkin_bracht_2970_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Alnus viridis
Site name: edge of Iron Lake, Bayfield County, WI
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: unlobed
Image Tags: catkin-bract dateable terrestrial
Betula_pumila_leaf_underside_77_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Betula pumila
Site name: Devlin's Park, Boulder, CO
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: abaxial (bottom) surface; rounded to obovate, 2-4 cm long, 1-3 cm wide, coarsely toothed margins, teeth may be blunt or sharp; petioles (leaf stalk) 3-6 mm long.
Image Tags: leaf terrestrial dateable reticulate toothed
Nuphar_lutea_seed_1351_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Nuphar lutea
Site name: USA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: ellipsoid to obovoid, 3-5 mm long, 2-3 mm wide; rounded on one side and compressed-angled on other; circular hole at base; yellow-brown; thick walled
Image Tags: floating-leaved seed ridged date-with-caution elliptic obovate base-conspicuous hilum-conspicuous
Typha_angustifolia_seed_1902_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Typha angustifolia
Site name: U.S.A.
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: oblong-elliptic, elongate, 0.8-1 mm long; whorled white pappus may be present; small, conical nipple on truncate end
Image Tags: emergent date-with-caution seed pappus hairy speckled style-persistent
Andromeda_glaucophylla_seed_3043_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Andromeda glaucophlla
Site name: Van Meer Bog, Alger County, MI
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: obovate-kidney shaped, 0.7-1.2 mm long
Image Tags: seed terrestrial dateable obovate reniform
betula_papyrifera_RIPO_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Betula papyrifera
Site name: Rice Portage Lake, Carlton County, MN
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: subfossil specimen; note remnant of wings, persistent stigmas, characteristic size and shape (elliptic, 1.5-3 mm)
Image Tags: terrestrial bistigmatic dateable seed winged elliptic pubescent subfossilized stigmas-persistent
Staphylea_trifolia_seed_2595_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Staphylea trifolia
Site name: Stranger Creek, KS
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: elliptic, 5-7 mm long; conspicuous micropyle opening (hole at seed base); smooth, shiny
Image Tags: seed elliptic terrestrial dateable indented base-conspicuous hilum-conspicuous
Doellingeria_umbellata_seed_MNMN_jm_edit_2-600.jpg Unique Identification: Plant Macrofossil
Taxon: Doellingeria umbellata
Site name: not specified
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: oblong-cylindric, 2-3 mm long with tapering base; pappus (white hairs) may or may not be present in fossils; lengthwise ridges; sparsely pubescent
Image Tags: terrestrial seed dateable pappus pubescent oblong hairy bristled ridged
Rumex_maritimus_seed_2995_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Rumex maritimus
Site name: margin of Little Storm Lake, Buena Vista County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: triangular, sides convex, 1-1.5 mm; smooth, shiny; embryo attached to one side (rather than to a corner as in Polygonum)
Image Tags: seed terrestrial dateable trigonous smooth glabrous
Cerastium_nutans_seed_180_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Cerastium nutans
Site name: Des Moines County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: angular-ovate, flat; ~0.5 mm long; surface with distinct tubercles (wart like projections); must compare to other tubercles within genus for species identification
Image Tags: seed terrestrial dateable tuberculate warty
Phragmites_australis_floret_3224_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Phragmites australis
Site name: U.S.A.
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: unequal glumes; prominent veins on longer glume
Image Tags: emergent date-with-caution veined
Salvia_lyrata_seed_2732_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Salvia lyrata
Site name: Estill County, KY
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: elliptic compressed-triangular, 2-2.5 mm long; surface marbled with streaks and/or netted lines
Image Tags: seed terrestrial dateable elliptic colliculate bumpy veined speckled
Potamogeton_epihydrus_achene_external_2003_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Potamogeton epihydrus
Site name: Penobscot County, ME
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: 2-3 mm long, round with pronounced marginal ridge and small beak (at end of ridge on top of seed)
Image Tags: seed ear-shaped submerged do-not-date beaked rostrate ridged
Ranunculus_hispidus_seed_3040_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Ranunculus hispidus
Site name: Baker property, Cedar County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: flat-lenticular in cross-section, obovate in outline, 2-3.5 mm; prominently beaked and sometimes with marginal wing
Image Tags: seed terrestrial dateable obovate beaked winged rostrate
Lycopus_americanus_leaf_adaxial_2048_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Lycopus americanus
Site name: lower Finkbine wetland, Johnson County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: adaxial (top) side of leaf shown; lanceolate, 3-8 cm long, 1-4 cm wide; margins coarsely, irregularly toothed
Image Tags: leaf terrestrial dateable lanceolate toothed
Larix_laricina_cone_1411_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Larix laricina
Site name: St.Louis County, MN
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: seed cone; 1-2 cm long, 0.5-1 cm wide, lustrous (shiny) brown-red scales
Image Tags: cone terrestrial dateable
Carex_tribuloides_perigynia_755_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Carex tribuloides
Site name: Blackhawk County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: lanceolate, thin and scalelike with wings, 3-5.5 mm long, 1-1.5 mm wide; inner face distinctly veined; wings narrowed below the midpoint
Image Tags: emergent date-with-caution perigynia winged veined lanceolate
Carex_viridula_perigynia_772_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Carex viridula
Site name: Squaw Lake, Itasca County, MN
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: obovate, mostly straight, though sometimes beak is reflexed; 2.2-3.3 mm long; irregularly veined, with 2 prominent marginal veins and 2-6 less defined veins
Image Tags: emergent date-with-caution perigynia beaked rostrate veined obovate
Heteranthera_limosa_seed_1570_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Heteranthera limosa
Site name: Stuttgart, AR
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: broadly elliptic, 0.4-0.6 mm long; longitudinally ridged; both ends (hilum and chalazal) are conspicuos
Image Tags: seed submerged do-not-date ridged elliptic oblong ridged
Ulmus_americana_bud_2908_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Ulmus americana
Site name: Boulder, Boulder County, CO
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: buds glabrous
Image Tags: twig bud terrestrial dateable
Larix_laricina_needle_1411_jm_edit2-600.jpg Unique Identification: Plant Macrofossil
Taxon: Larix laricina
Site name: St.Louis County, MN
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: Base of needle on righthand side, except middle needle oriented with base on lefthand side. Note blunt tip, linear shape, 3-sided in cross section, 10-25 mm long.
Image Tags: leaf needle terrestrial dateable linear blunt ridged
Atriplex_patula_seed_227_jm_edit_2-600.jpg Unique Identification: Plant Macrofossil
Taxon: Atriplex patula
Site name: Melenaur farm near Denhoff, Sheridan County, ND
Light type: Reflected Light
Magnification: 8.0
Submitted by: Jimmy Marty
Notes: lens shaped in cross section, circular in outline; 1-3 mm wide; dull, dark brown to black; outline of ring-shaped embryo clearly visible
Image Tags: seed terrestrial dateable round
glyceria_PO_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Glyceria sp.
Site name: Restored wetland, Upper Sioux River, MN
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: subfossil specimen; obovate, 0.5-1.5 mm; prominent indent at base of seed characterstic of Glyceria; 2 persistent, recurved stigmas; reddish-brown
Image Tags: emergent date-with-caution indented bistigmatic seed subfossilized obovate stigmas-persistent
Potamogeton_natans_achene_internal_2012_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Potamogeton natans
Site name: Dickinson County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: 3-5 mm long; short beak (pictured on top of seed); loose, shiny, inflated covering often preserved in lake sediments; in photo covering is dried and shriveled
Image Tags: seed submerged do-not-date coiled ear-shaped beaked rostrate
Alnus_serrulata_seed_3076_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Alnus serrulata
Site name: Huntsville County, AL
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: obovoid, flattened; narrowly winged on margins, 2-3 mm long
Image Tags: seed terrestrial dateable style-base-persistent
Chenopodium_album_seed_2704_jm_edit_2-600.jpg Unique Identification: Plant Macrofossil
Taxon: Chenopodium album
Site name: Rochester Cemetary, Cedar County, IA
Light type: Reflected Light
Magnification: 8.0
Submitted by: Jimmy Marty
Notes: circular-lenticular, 1-2 mm wide; more spherical relative to other Chenopodium spp.; rounded margins; note notch in margin - this is the attachement scar and also represents the gap between each end of the embryo (which runs circular around the edge of the seed) - gap is relatively shallow in C. album; embryo extending to form blunt hook
Image Tags: seed shiny smooth glabrous terrestrial dateable notched
Agastache_foeniculum_seed_2073_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Agastache foeniculum
Site name: Johnson County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: oblong rounded-triangular, 1-1.5 mm long; surface ridged, with bristles clustered at top and along margins
Image Tags: seed terrestrial dateable oblong obovate ridged bristled
Kalmia_angustifolia_leaf_abaxial_2403_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Kalmia angustifolia
Site name: not specified
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: abaxial (bottom) side shown; elliptic-oblong, 2-5 cm long, 0.5-2 cm wide; bottom of leaf paler than top; tips may be rounded or pointed; leathery; short petioles; margins entire, may be curled under leaf
Image Tags: leaf terrestrial dateable elliptic revolute
Menyanthes_trifoliata_seed_3088_jm_2_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Menyanthes trifoliata
Site name: bog near Homer, Kenai Peninsula, AK
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: elliptic-oval, ~2.5 mm long
Image Tags: seed terrestrial dateable elliptic hilum-conspicuous
Eleocharis_ovata_achene_822_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Eleocharis ovata
Site name: Blackhawk County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: lens-shaped, light to dark brown or olive, shiny, 1-1.5 mm long; tubercle (cap on top of seed) flattened-triangular, about as wide as broad top of achene (seed)
Image Tags: seed emergent date-with-caution capped bristled obovate
Betula_papyrifera_catkin_bracht_3039_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Betula papyrifera
Site name: SE side of Green Lake, Kandiyohi County, MN
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: 3 lobed, lobes divergent, forming cross-like or fleur-de-lis shape. 6-12 mm.
Image Tags: catkin-bract terrestrial dateable lobed hairy pubescent
Potamogeton_epihydrus_achene_internal_2003_jm-600.jpg Unique Identification: Plant Macrofossil
Taxon: Potamogeton epihydrus
Site name: Penobscot County, ME
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: 2-3 mm long, round with pronounced ridge and small beak (at top of seed)
Image Tags: ear-shaped beaked rostrate coiled ridged seed submerged do-not-date
Potamogeton_richardsonii_seed_external_2024_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Potamogeton richardsonii
Site name: Dickinson County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: earlike shape (with covering removed), 2-4 mm long; short beaked; indented along margin and face; coiled embryo
Image Tags: submerged do-not-date seed indented ear-shaped beaked rostrate
Carex_backii_perigynia_536_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Carex backii
Site name: Dubuque County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: rounded trigonous, obovate, inconspicuously veined, 4-5.4 mm; beak 2 mm long, inconspicuously serrate
Image Tags: terrestrial dateable perigynia obovate beaked rostrate veined serrate
Scirpus_cyperinus_seed_858_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Scirpus cyperinus
Site name: Monroe County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: flattened trigonous, 0.5-1 mm long; short beak; very long bristles easily attach/tangle
Image Tags: emergent date-with-caution seed trigonous bristled comose hairy beaked rostrate
Capsella_bursa-pastoris_seed_2252_jm_edit_2-600.jpg Unique Identification: Plant Macrofossil
Taxon: Capsella bursa-pastoris
Site name: Minnesota Weed Seeds, Series I, MN
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: compressed-elliptic, 0.5-1 mm long; attachment point slightly darker; ridged longitudinally due to bent embryo
Image Tags: terrestrial seed dateable hilum-conspicuous base-conspicuous ridged elliptic
Carex_viridula_achene_772_jm_vs_photochop-600.jpg Unique Identification: Plant Macrofossil
Taxon: Carex viridula
Site name: Squaw Lake, Itasca County, MN
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: trigonous, 1.1-1.4 mm long, style base persistent
Image Tags: emergent date-with-caution obovate seed trigonous style-base-persistent reticulate
Sambucus_canadensis_seed_139_jm_edit_2-600.jpg Unique Identification: Plant Macrofossil
Taxon: Sambucus canadensis
Site name: Verona, Dane County, WI
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: elliptic-ovate in outline compressed triangular in cross section, 2-3 mm long; very slightly arched inward; crosswise wrinkled; inner wall woody
Image Tags: seed terrestrial dateable elliptic obovate wrinkled rugose woody
Carex_jamesii_perigynia_634_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Carex jamesii
Site name: Van Buren County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: subglobose, 3-4.5 mm long, 1.5-2 times as long as wide; short, slender beak
Image Tags: terrestrial dateable beaked rostrate perigynia round globose
Calamagrostis_canadensis_seed_2719_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Calamagrostis canadensis
Site name: Williams Prairie, Johnson County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: linear oblong, 1.5-2 mm long; dry, glabrous; pappus may or may not be present
Image Tags: pappus seed emergent date-with-caution glabrous smooth linear oblong hairy
Quercus_palustris_seed_975_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Quercus palustris
Site name: Missouri Botanical Garden, East Baton Rouge County, MO
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: nut 10-16 mm long, 9-15 mm wide; cup shallow, saucer shaped, covering 1/5 to 1/4 of nut
Image Tags: seed terrestrial dateable woody round globose
Cicuta_maculata_seed_1915_jm_edit_2-600.jpg Unique Identification: Plant Macrofossil
Taxon: Cicuta maculata
Site name: not specified
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: obovate, flat on one side, 2-4 mm long; conspicuously ribbed
Image Tags: seed emergent ribbed date-with-caution obovate planoconvex
Equisetum_fluviatile_stem_2056_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Equisetum fluviatile
Site name: Busching mound springs, Chickasaw County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: ~9-25 shallow ridges; central cavity large ~4/5 of total stem diameter; other smaller cavities present in stem
Image Tags: stem emergent dateable ridged segmented
Carex_comosa_perigynia_568_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Carex comosa
Site name: not specified
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: lanceolate, 5-8 mm long; strongly nerved; tapering to beak, which is ~2-3 mm long; beake with reflexed teeth ~1-2 mm long
Image Tags: emergent date-with-caution perigynia ribbed lanceolate beaked rostrate
Medicago_sativa_seed_2113_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Medicago sativa
Site name: not specified
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: compressed kidney shaped, 2-3 mm long; narrow line runs obliquely on each face from hilum (seed attachment scar)
Image Tags: seed terrestrial dateable reniform hilum-conspicuous
Rhynochospora_alba_achene_843_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Rhynchospora alba
Site name: Mt. Desert Island, ME
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: lens shaped, 1-2 mm long; tubercle cap triangular; smooth surface; bristles
Image Tags: seed emergent date-with-caution capped bristled beaked rostrate
Potentilla_palustris_seed_3123_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Potentilla palustris
Site name: Tern Lake, Kenai Peninsula, AK
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: ear shaped, arched, with rounded back and straight to concave edge, shaped similar to Potamogeton; ~ 1 mm long
Image Tags: seed ear-shaped terrestrial emergent date-with-caution
Zizania_palustris_spikelet_MNMN_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Zizania palustris
Site name: Fond du Lac Reservation, MN
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: floret awl-shaped, 1-2 cm long, tapering to an awn 3-6 cm long; seed cylyndric, 1-2 cm long
Image Tags: emergent date-with-caution seed awned
Vaccinium_oxycoccos_leaf_abaxial_932_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Vaccinium oxycoccos
Site name: Hubbard County, MN
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: abaxial (bottom) side shown; ovate to narrowly triangular, 2-10 mm long, 1-3 mm wide; bottom of leaf much paler than top; tips may be rounded or pointed; leathery
Image Tags: leaf terrestrial dateable
verbena_hastata_PO_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Verbena hastata
Site name: Restored wetland, Upper Sioux River, MN
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: subfossil specimen; compressed-oblong, rounded triangular in cross section 1.5-3 mm long; prominent seed sttachment scar; rounded side is ridged lengthwise; cross ridges also present; margins narrowly flanged; very short, whitish hairs sometimes present
Image Tags: seed emergent terrestrial dateable ridged oblong base-conspicuous hilum-conspicuous
Morus_rubra_seed_2890_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Morus rubra
Site name: Oskaloosa, Mahaska County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: oval-lenticular to ovate, 1.5-3 mm long; a light colored, slender attachment stalk appressed to thinnest edge of seed; inner surface marked with cellular reticulations
Image Tags: seed terrestrial dateable
Polygonum_amphibium_seed_2993_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Polygonum amphibium
Site name: marsh near Green Lake, Kandiyohi County, MN
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: lens shaped achene, 2-4 mm long; smooth, shiny, dark brown
Image Tags: seed emergent date-with-caution biconvex glabrous smooth
Alnus_serrulata_catkin_bract_3076_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Alnus serrulata
Site name: Huntsville County, AL
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: weakly 5 lobed, with center lobe being most prominent; may be dotted with resin
Image Tags: catkin-bract terrestrial dateable lobed resinous
Glyceria_striata_floret_2916_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Glyceria striata
Site name: Williams Prairie, Johnson County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: obovate, 0.5-1.5 mm; strongly 7 veined; often purple
Image Tags: emergent date-with-caution obovate veined
Sparganium_angustifolium_seed_1878_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Sparganium angustifolium
Site name: Muskee Lake, Boulder County, CO
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: spindle shaped, 5-7 mm long; abruptly contracted to a beak 1-3 mm long
Image Tags: emergent date-with-caution seed ovate
Carpinus_caroliniana_twig_and_bud_3168_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Carpinus caroliniana
Site name: Baker land, Cedar County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: none
Image Tags: twig bud terrestrial dateable
Ranunculus_aquatilis_seed_jm_1628_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Ranunculus aquatilis
Site name: U.S.A.
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: ear shaped to reniform, 1-1.5 mm long, shape similar to Potamogeton; short, thin, straight beak sometimes present
Image Tags: seed submerged do-not-date beaked rostrate reniform ear-shaped
Larix_laricina_twig_bud_1411_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Larix laricina
Site name: St.Louis County, MN
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: Yellow-brown, male cones pictured. Note bud scars on twig surface.
Image Tags: twig terrestrial dateable
Najas_flexilis_seed_1333_jm_2_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Najas flexilis
Site name: Cedar County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: Elliptic, slender, seed coat shiny, up to 3.2 mm long, 1/3 as thick as long, marked with 30-40 longitudinal rows of obscure pits across the middle, covered by a yellow coat. Seed halves commonly found in sediment cores.
Image Tags: submerged do-not-date reticulate pitted foveate elliptic
Sanicula_gregaria_seed_1936_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Sanicula gregaria
Site name: Benton County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: sub-globose, 3-5 mm, very bristly to the base
Image Tags: terrestrial dateable seed planoconvex bristled barbellate
Callitriche_palustris_seed_110_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Callitriche palustris
Site name: Winneshiek County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: flattened-round, 1-1.5 mm long; pitted, narrowly winged near tips
Image Tags: submerged seed do-not-date round wedge-shaped pitted foveate
Chamaedaphne_calyculata_seed_896_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Chamaedaphne calyculata
Site name: Hubbard County, MN
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: wedge shaped, < 1 mm; striate surface
Image Tags: seed terrestrial dateable striate grooved semicircular wedge-shaped
Impatiens_capensis_seed_65_jm_edit_2-600.jpg Unique Identification: Plant Macrofossil
Taxon: Impatiens capensis
Site name: not specified
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: elliptic, four angled, narrowing at base, ~4 x 2.5 x 2 mm; length wise ridges; surface usually warty or wrinkly
Image Tags: terrestrial seed dateable elliptic four-sided ridged wrinkled rugose
Carex_squarrosa_achene_736_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Carex squarrosa
Site name: Jefferson County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: ellipsoid trigonous with sinous, persistent style; 2.2-3 mm long, 2.5 times as long as wide
Image Tags: emergent date-with-caution seed pitted style-persistent elliptic trigonous
Quercus_palustris_seed_cap_975_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Quercus palustris
Site name: Missouri Botanical Garden, East Baton Rouge County, MO
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: nut 10-16 mm long, 9-15 mm wide; cup shallow, saucer shaped, covering 1/5 to 1/4 of nut
Image Tags: seed terrestrial dateable scaled
Potamogeton_zosteriformis_seed_external_2032_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Potamogeton zosteriformis
Site name: Dickinson County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: earlike shape (with covering removed), 4-5 mm long; very short, blunt beak; indented along margin and face; coiled embryo
Image Tags: submerged do-not-date seed indented ear-shaped beaked rostrate
Taenidia_integerrima_seed_1943_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Taenidia integerrima
Site name: Dickenson County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: crescent-wedge shaped , 4-5 mm long, 3-4 mm wide; slightly compressed laterally, shallow ribbed
Image Tags: terrestrial dateable seed ribbed wedge-shaped semicircular
Eupatorium_altissimum_seed_2943_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Eupatorium altissimum
Site name: Crandic-Coralville bikepath, Johnson County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: oblong, tapering to base, 2.5-3.5 mm long, 5 sided; speckled with small white dots, base may be white as well; coarse, white pappus may or may not be preserved in sediment
Image Tags: terrestrial dateable seed oblong speckled bristled pappus five-sided
lobelia_dortmanna_seed-600.jpg Unique Identification: Plant Macrofossil
Taxon: Lobelia dortmanna
Site name: not specified
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: oblong-obovate, ~0.5-0.7 mm long; square at base; grooved striations
Image Tags: obovate oblong grooved striate
Eupatorium_rugosum_seed_2951_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Eupatorium rugosum
Site name: Finkbine bikepath, in shade, Johnson County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: oblong, tapering to base, 2-2.5 mm long, 5 sided; glabrous (no hairs/spots); white base; coarse, white pappus may or may not be preserved in sediment
Image Tags: terrestrial dateable seed glabrous oblong five-sided pappus bristled
Carex_comosa_achene_568_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Carex comosa
Site name: not specified
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: trigonous, each side slightly concave, 1.5-2 mm long; style persistent
Image Tags: emergent date-with-caution seed trigonous style-persistent
Picea_mariana_needle_2124_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Picea mariana
Site name: open woodland south of Dawson, Yukon, Canada
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: Note blunt tip, base of needle on right hand side of photograph. Four-angled in cross section, 6-18 mm long.
Image Tags: leaf linear needle terrestrial dateable blunt arched pitted foveate ridged
Potamogeton_amplifolius_seed_external_1998_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Potamogeton amplifolius
Site name: Muscatine County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: earlike shape (with covering removed; covering is ovate in shape), 4-5 mm long; pronounced beak up to 1 mm long; indented along margin and face; coiled embryo
Image Tags: submerged indented do-not-date seed ear-shaped beaked rostrate
Silene_nivea_seed_205_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Silene nivea
Site name: Delaware County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: rounded, kidney shaped, 0.5-1.5 mm long; dark tipped, cone shaped tubercles (warty bumps) in concentric rows, increasing in size away from the hilum (seed base); base of tubercles bordered by zig-zag pattern
Image Tags: seed warty tuberculate terrestrial dateable round reniform bumpy
Fraxinus_americana_seed_3188_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Fraxinus americana
Site name: Baker property, Cedar County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: fruit linear to oblanceolate, 3-5 cm; wing extending 1/3 the length of the body
Image Tags: terrestrial dateable linear winged
Myriophyllum_pinnatum_seed_1103_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Myriophyllum pinnatum
Site name: Lucas County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: none
Image Tags: seed submerged ridged spiny do-not-date
Vallisneria_americana_seed_1110_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Vallisneria americana
Site name: Cerro Gordo County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: ovate-lanceolate, 1.5-2.5 mm long; white hilum (attachment scar) with black border
Image Tags: seed submerged do-not-date obovate oblong hilum-conspicuous base-conspicuous
Betula_pumila_catkin_bract_77_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Betula pumila
Site name: Devlin's Park, Boulder, CO
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: 3 lobed, rounded, sometimes dotted with resin.
Image Tags: catkin-bract terrestrial dateable lobed resinous
Betula_alleghaniensis_catkin_bracht_79_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Betula alleghaniensis
Site name: Hardin County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: sharply 3-lobed, ciliate (hairs) along margins, 6-13 mm long
Image Tags: catkin-bract terrestrial dateable lobed pubescent hairy
Acer_rubrum_seed_51_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Acer rubrum
Site name: Johnson County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: fruit 2-4 cm; wing slightly divergent to 50-60 degrees
Image Tags: fruit seed terrestrial dateable
Najas_guadalupensis_seed_1335_jm_2_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Najas guadalupensis
Site name: Clear Lake, Cerro Gordo County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: elliptic, slender, seed coat dull, 1.2-3.8 mm long depending on subspecies. Deeply pitted, 20-60 longitudinal pits.
Image Tags: submerged do-not-date pitted foveate reticulate elliptic
Viola_pedata_seed_2936_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Viola pedata
Site name: Ciha property, Johnson County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: obovate, 1.6-2.0 mm long; prominent elongated white ridge along base of seed (raphe)
Image Tags: terrestrial dateable seed obovate ridged base-conspicuous
Isoetes_echinospora_spore_2371_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Isoetes echinospora
Site name: Devils Lake Wisconsin, S.W. Corner, Sauk County, WI
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: globose, 0.4-0.5 mm in diameter; covered in prickly tubercles (warty bumps) ridges trisecting spore into three parts
Image Tags: spore submerged do-not-date ridged globose round bristled tuberculate
Scheuchzeria_palustris_seed_3045_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Scheuchzeria palustris
Site name: Van Meer Bog, Alger County, MI
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: elliptic, 3.5-5 mm long; lengthwise ridge is diagnostic of seed
Image Tags: elliptic emergent date-with-caution seed ridged
Tilia_americana_seed_2426_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Tilia americana
Site name: Iowa Lakeside Laboratory, Dickenson County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: globose, 6-10 mm in diameter; pubescent, hard
Image Tags: seed terrestrial dateable globose pubescent woody
Betula_alleghaniensis_seed_79_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Betula alleghaniensis
Site name: Hardin County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: winged, 3 mm long, 3-5 mm wide, ellipsoid-obovate in shape, somewhat flattened; wings may be damaged/missing in subfossil samples
Image Tags: seed terrestrial dateable obovate winged stigmas-persistent hairy pubescent
Acer_saccharum_bud_scales_3213_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Acer saccharum
Site name: Baker property, Cedar County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: pointy, brown colored
Image Tags: bud-scale terrestrial dateable
Ostrya_virginiana_seed_2849_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Ostrya virginiana
Site name: Peninsula State Park, Door County, WI
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: compressed lanceolate-ellipsoid, ~4 x 2.2 x 1 mm; thin, brownish, papery coat lining inside of wall; smooth, unribbed surface (as opposed to ribbed surface of Carpinus)
Image Tags: terrestrial dateable ovate glabrous smooth
Chamaedaphne_calyculata_seed_capsule_closed_896_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Chamaedaphne calyculata
Site name: Hubbard County, MN
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: rounded, 5 sectioned capsule, up to 6 mm wide; indented top; style persistent from top of capsule
Image Tags: terrestrial dateable round indented style-persistent ribbed
Ranunculus_abortivus_seed_2430_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Ranunculus abortivus
Site name: Iowa Lakeside Laboratory, Dickenson County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: lenticular in cross-section, elliptic in outline, ~1.5 mm long; beak present, but very short
Image Tags: seed terrestrial dateable style-base-persistent ear-shaped
Sagittaria_latifolia_seed_potosi_1969_jm_edit_2-600.jpg Unique Identification: Plant Macrofossil
Taxon: Sagittaria latifolia
Site name: not specified
Light type: Reflected Light
Magnification: 8.0
Submitted by: Jimmy Marty
Notes: obovate, 2-4 mm long; beak projecting horizontally, 1-2 mm long; winged
Image Tags: emergent date-with-caution seed winged beaked rostrate obovate
Fraxinus_nigra_seed_1355_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Fraxinus nigra
Site name: USA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: fruit flat, lanceolate to oblanceolate, ~2.5-4 cm x 6-10 mm; very small notch at tip of wing
Image Tags: terrestrial dateable oblong winged notched emarginate
Thalictrum_dioicum_seed_2895_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Thalictrum dioicum
Site name: Nerstrand Woods State Park, Rice County, MN
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: elliptic, 2.5-4 mm long; very strongly ribbed; nearly symmetrical
Image Tags: seed terrestrial dateable elliptic ribbed
Gleditsia_triacanthos_leaf_adaxial_3167_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Gleditsia triacanthos
Site name: Baker land, Cedar County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: adaxial side (top of leaf) pictured; oblong-lanceolate, 2-4 cm long (mature trees) or 1-2 cm long (young trees); weakly roundly toothed; petioles pubescent
Image Tags: leaf terrestrial dateable serrate lanceolate oblong toothed pubescent hairy
Campanula_americana_seed_2863_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Campanula americana
Site name: City Park, Iowa City, Johnson County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: compressed, oval to elliptic, 0.5-1 mm long; glossy; conspicuous seed coat lighter in color than body
Image Tags: terrestrial dateable seed elliptic glabrous smooth base-conspicuous
Phragmites_australis_lemma_palea_3224_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Phragmites australis
Site name: U.S.A.
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: unequal glumes; prominent veins on longer glume
Image Tags: emergent date-with-caution veined
Platanus_occidentalis_twig_2905_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Platanus occidentalis
Site name: Boulder, Boulder County, CO
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: none
Image Tags: twig bud terrestrial dateable
Andromeda_glaucophylla_leaf_3043_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Andromeda glaucophlla
Site name: Van Meer Bog, Alger County, MI
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: linear to narrowly oval, 2-5 cm long, 3-10 mm wide; sharp pointed with a small spine; leathery; margins may be rolled under abaxial (bottom) side of leaf (revolute)
Image Tags: leaf terrestrial dateable linear pointed revolute
Picea_mariana_seed_MNMN_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Picea mariana
Site name: not specified
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: biconvex, 1.5-2 mm long; wing 2-5 mm long
Image Tags: seed terrestrial dateable winged biconvex obovate
Quercus_velutina_seed_3194_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Quercus velutina
Site name: Baker property, Cedar County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: nut ovoid, 6-13 mm long; cup bowl shaped, covering 1/2 of nut; large, pubescent scales; marginal scales projecting, forming fringe
Image Tags: seed terrestrial dateable ovate woody scaled pubescent fringed
Ostrya_virginiana_twig_2849_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Ostrya virginiana
Site name: Peninsula State Park, Door County, WI
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: none
Image Tags: twig bud terrestrial dateable
Carex_backii_achene_536_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Carex backii
Site name: Dubuque County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: rounded trigonous, 2-2.5 mm long; weak reticulate texture; style base (top of seed) rounded with indent
Image Tags: terrestrial dateable seed foveate obovate reticulate pitted
Eleocharis_acicularis_achene_808_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Eleocharis acicularis
Site name: Muskee Lake, Boulder, CO
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: rounded, 3 angled, ridged, up to 1 mm long; tubercle (cap on top of seed) cone shaped, constricted at base
Image Tags: seed emergent submerged date-with-caution capped obovate ridged striate
Kalmia_angustifolia_seed_capsule_open_2403_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Kalmia angustifolia
Site name: not specified
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: rounded, 5 sectioned capsule, 2.5-4.5 mm in diameter
Image Tags: terrestrial dateable
Viola_papilionacea_seed_1979_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Viola papilionacea
Site name: U.S.A.
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: obovate-elliptic, 1.8-2.2 mm long; prominent elongated white ridge on one side of seed attachement scar (raphe); mottled brown
Image Tags: terrestrial dateable seed speckled base-conspicuous ridged obovate
Luzula_acuminata_seed_MNMN_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Luzula acuminata
Site name: not specified
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: subglobose, 1-1.2 mm; clear-yellow elaiosome (lipid rich deposit used to attract insect dispersal) attached to seed
Image Tags: seed terrestrial dateable globose round
Populus_tremuloides_bud_scale_2865_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Populus tremuloides
Site name: Peninsula State Park, Door County, WI
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: 2-8 mm; smooth, glabrous
Image Tags: bud-scale terrestrial dateable glabrous
Prunus_serotina_seed_1726_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Prunus serotina
Site name: Baker property, Cedar County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: pit globose, 7-9 mm in diameter; low ridge along one side (visible on left side of top right pit in image); inner surface of pit is minutely cellular-pitted; hole on attachment end of pit; ~ 10 mm thick with flesh, dark purple to black colored
Image Tags: pitted terrestrial dateable ridged woody
Schoenoplectus_tabernaemontani_870_2_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Schoenoplectus tabernaemontani
Site name: USA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: flat on one side, convex on other, 2-3 mm long, beak (on broad end of seed) up to 0.2 mm long, bristles (hairs) not always present
Image Tags: seed emergent date-with-caution bristled beaked obovate planoconvex rostrate
Brasenia_schreberi_seed_1343_jm_edit_2-600.jpg Unique Identification: Plant Macrofossil
Taxon: Brasenia schreberi
Site name: Pontederia Pond west of Muscatine, Muscatine County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: globose-elliptic, 2-2.5 mm; seed wall radially striated, woody
Image Tags: seed floating-leaved date-with-caution woody globose elliptic
Typha_latifolia_seed_1903_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Typha latifolia
Site name: U.S.A.
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: oblong-elliptic, elongate, 0.8-1.5 mm long; whorled white pappus may be present; small, conical nipple on truncate end
Image Tags: emergent date-with-caution seed pappus hairy style-persistent speckled
Quercus_velutina_seed_cap_3194_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Quercus velutina
Site name: Baker property, Cedar County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: nut ovoid, 6-13 mm long; cup bowl shaped, covering 1/2 of nut; large, pubescent scales; marginal scales projecting, forming fringe
Image Tags: seed terrestrial dateable scaled fringed pubescent
Kalmia_angustifolia_leaf_adaxial_2403_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Kalmia angustifolia
Site name: not specified
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: adaxial (top) side shown; elliptic-oblong, 2-5 cm long, 0.5-2 cm wide; bottom of leaf paler than top; tips may be rounded or pointed; leathery; short petioles; margins entire, may be curled under leaf
Image Tags: leaf terrestrial dateable elliptic revolute
Vaccinium_oxycoccos_leaf_adaxial_932_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Vaccinium oxycoccos
Site name: Hubbard County, MN
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: adaxial (top) side shown; ovate to narrowly triangular, 2-10 mm long, 1-3 mm wide; bottom of leaf much paler than top; tips may be rounded or pointed; leathery
Image Tags: leaf terrestrial dateable
Saxifraga_rivularis_seed_1828_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Saxifraga rivularis
Site name: Beartooth Plateau, Carbon County, MT
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: elliptic, 0.3-0.5 mm long; finely pitted surface; embryo folded so that lengthwise dark brown line is visible
Image Tags: seed pitted foveate terrestrial dateable
Brasenia_schreberi_fruit_1343_jm_edit_2-600.jpg Unique Identification: Plant Macrofossil
Taxon: Brasenia schreberi
Site name: Pontederia Pond west of Muscatine, Muscatine County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: oblong capsule, 3-5 mm long; may contain 1 or 2 seeds; capsules containing only 1 seed are tapered as seen in top left specimen
Image Tags: seed floating-leaved date-with-caution oblong capsule
Acer_negundo_seed_kvz_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Acer negundo
Site name: USA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: fruit 3-5 cm long; wing may be straight or incurved; seed ~1.2 cm long
Image Tags: fruit terrestrial dateable winged
Lotus_corniculatus_seed_2874_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Lotus corniculatus
Site name: Finkbine bike trail, Iowa City, Johnson County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: ovate, 1-1.5 mm long; variable color; prominent hilum (attachment scar)
Image Tags: seed terrestrial dateable hilum-conspicuous
Claytonia_virginica_seed_1575_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Claytonia virginica
Site name: Coralville, Johnson County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: oval-lenticular, 1-2 mm; black, very shiny; note marginal cleft plugged with white material
Image Tags: seed terrestrial dateable shiny glabrous smooth hilum-conspicuous elliptic
Dulichium_arundinaceum_seed_2063_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Dulichium arundinaceum
Site name: Nichols Marsh, Muscatine County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: oblong, lens shaped in cross section, 2-4 mm long; long, sturdy, persistent style beak about as long as body
Image Tags: emergent date-with-caution seed style-persistent
Nelumbo_lutea_seed_1344_jm_2_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Nelumbo lutea
Site name: Mississippi River, Soutwestern WI
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: globose, ~ 1 cm across; somewhat resembles an acorn; seed wall very hard
Image Tags: floating-leaved seed date-with-caution globose
Quercus_macrocarpa_seed_972_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Quercus macrocarpa
Site name: Clearwater County, MN
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: nut depressed to narrowly ovate, 2-5 cm long, 2-4 cm wide; cup covering 1/3 to 3/4 of nut; marginal cup scales awned, forming a fringe; inside of cup pubescent
Image Tags: seed terrestrial dateable ovate woody scaled awned fringed
Strophostyles_helvola_seed_1281_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Strophostyles helvola
Site name: Johnson County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: oblong-compressed; 3-8 mm long; dry, grayish outer coating and black underneath; white, oblong hilum bordered by black
Image Tags: seed terrestrial dateable hilum-conspicuous oblong
Ceratophyllum_echinatum_seed_2723_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Ceratophyllum echinatum
Site name: Baker County, GA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: elliptic in outline, lenticular in cross section, body ~5 mm long; abundant marginal spines; woody wall
Image Tags: seed spiny woody submerged do-not-date elliptic colliculate bumpy
Scirpus_cyperinus_seed_no_hairs_858_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Scirpus cyperinus
Site name: Monroe County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: flattened trigonous, 0.5-1 mm long; short beak; very long bristles easily attach/tangle
Image Tags: emergent date-with-caution seed trigonous bristled beaked rostrate
Euphorbia_corollata_seed_2649_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Euphorbia corollata
Site name: Rochester Cemetary, Cedar County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: obovate, 2-4 mm long; distinct longitudinal line present; mottled brown and white
Image Tags: terrestrial seed dateable speckled obovate
Eleocharis_palustris_achene_2677_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Eleocharis palustris
Site name: Kenai Peninsula, AK
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: common species with broad range and variable morphology; 1-2 mm long, yellow to brown; tubercle (cap on top of seed) flattened-triangular, constricted at base
Image Tags: seed emergent date-with-caution capped bristled obovate
Kalmia_angustifolia_seed_capsule_closed_2403_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Kalmia angustifolia
Site name: not specified
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: rounded, 5 sectioned capsule, 2.5-4.5 mm in diameter
Image Tags: terrestrial dateable round
Lycopus_americanus_leaf_abaxial_2048_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Lycopus americanus
Site name: lower Finkbine wetland, Johnson County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: abaxial (bottom) side of leaf shown; lanceolate, 3-8 cm long, 1-4 cm wide; margins coarsely, irregularly toothed
Image Tags: leaf terrestrial dateable lanceolate toothed
Acer_saccharum_twig_3213_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Acer saccharum
Site name: Baker property, Cedar County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: opposite bud scars, glabrous (shiny); lenticels (white marks)
Image Tags: twig terrestrial dateable
Laportea_canadensis_seed_3224_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Laportea canadensis
Site name: Baker Land, Cedar County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: flattened-ovate, 1.5-2 mm long; marginal seam that is lighter in color than seed body; short beaked
Image Tags: seed flattened round compressed terrestrial dateable beaked rostrate
Nuphar_lutea_ssp_polysepala_seed_3220_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Nuphar lutea subsp. polysepala
Site name: Bighorn Mountains, WY
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: obovoid, 4-5.5 mm long, 2-3 mm wide; rounded on one side and compressed-angled on other; circular hole at base; yellow-brown; thick walled
Image Tags: floating-leaved seed date-with-caution obovate ridged base-conspicuous hilum-conspicuous
Chara_sp_oogonia_219_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Chara sp.
Site name: Green Lake, Kandiyohi County, MN
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: Terete, black, 0.3-0.5 mm long. Spiral markings (striae). Two basal impressions present.
Image Tags: submerged do-not-date elliptic black spiraled striate
Carex_deweyana_achene_585_jm_edit2-600.jpg Unique Identification: Plant Macrofossil
Taxon: Carex deweyana
Site name: Dubuque County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: biconvex, broad, 2-2.5 mm long
Image Tags: terrestrial dateable seed biconvex style-base-persistent obovate
Scirpus_atrovirens_achene_851_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Scirpus atrovirens
Site name: Linn County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: tan to white, 3 angled; ~ 1mm long, beak (on broad end of seed) ~0.2 mm long, bristles (hairs) not always present
Image Tags: seed emergent date-with-caution bristled trigonous beaked rostrate
Kalmia_angustifolia_seed_2403_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Kalmia angustifolia
Site name: not specified
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: oblong-linear, ~1 mm long; striated surface
Image Tags: seed terrestrial dateable striate grooved oblong
Ceratophyllum_demersum_leaves_stem_3015_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Ceratophyllum demersum
Site name: Upper Hottes Lake, Dickenson County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: leaves in whorls of 6-12; each leaf 8-40 mm long, usually forked in 2-8 segements with spiny teeth along margins; stiff, brittle
Image Tags: leaf submerged do-not-date whorled spiny
Luzula_spicata_seed_1192_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Luzula spicata
Site name: not specified
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: obovate, ~1 mm long; dimpled at top of seed
Image Tags: seed terrestrial dateable indented obovate base-conspicuous
Cyperus_squarrosus_achene_2581_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Cyperus squarrosus
Site name: Cedar River, Cedar County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: brown, 3 angled. 0.5-1 mm long
Image Tags: seed oblong ovate emergent date-with-caution trigonous style-base-persistent reticulate
Sagittaria_rigida_seed_DickinsonCo_1961_jm_edit_2-600.jpg Unique Identification: Plant Macrofossil
Taxon: Sagittaria rigida
Site name: Dickenson County, IA
Light type: Reflected Light
Magnification: 8.0
Submitted by: Jimmy Marty
Notes: obovate, 2-4 mm long; beak projecting vertically, 1-1.5 mm; narrowly winged relative to other Sagittaria spp.
Image Tags: emergent date-with-caution seed winged beaked rostrate obovate reticulate
Stellaria_graminea_seed_MNMN_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Stellaria graminea
Site name: not specified
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: oval-orbicular, ~1 mm long; covered in dendritic (branched projections) tubrercles (warty bumps)
Image Tags: seed warty tuberculate terrestrial dateable bumpy
Cerastium_arvense_seed_175_jm_edit_2-600.jpg Unique Identification: Plant Macrofossil
Taxon: Cerastium arvense
Site name: Clayton County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: angular-ovate to kidney shaped, 0.75-1 mm long; covered in many small tubercles (warty bumps) beginning at hilum (base) and broadening outward; rusty reddish brown, white hilum
Image Tags: seed warty tuberculate pitted foveate terrestrial dateable
Boehmeria_cylindrica_seed_1951_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Boehmeria cylindrica
Site name: Jackson County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: obovate-compressed, 0.5-0.7 mm long; pointed style base (tip); body surrounded by wing-like ring of spongy tissue, except at base; short whitish hair along edges
Image Tags: seed terrestrial dateable winged obovate compressed
Juncus_effusus_seed_1161_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Juncus effusus
Site name: Walton County, FL
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: oval, ~0.5 mm long; dark terminal appendages tapering at ends; cellular reticulations clearly visible in cell wall
Image Tags: seed emergent date-with-caution reticulate elliptic ovate
Isoetes_bolanderi_spore_1138_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Isoetes bolanderi
Site name: West Tensleep Lake, WY
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: globose, 0.3-0.5 mm in diameter; ridges trisecting spore into three parts; covered in tubercles (nodules)
Image Tags: spore submerged do-not-date ridged globose round bumpy tuberculate
Carpinus_caroliniana_bud_scales_3168_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Carpinus caroliniana
Site name: Baker land, Cedar County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: none
Image Tags: bud-scale terrestrial dateable
Betula_pumila_seed_77_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Betula pumila
Site name: Devlin's Park, Boulder, CO
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: very narrowly winged, rounded, 2-3 mm long, 2-4 mm wide; 2 stubby style bases persistent; woody, flat face
Image Tags: seed terrestrial dateable winged round style-base-persistent
Najas_marina_seed_1336_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Najas marina
Site name: Seneca County, NY
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: elliptic, seed coat dull, 2.2-4.5 mm long. Pits 3-4 angles, longer than wide, distributed irregularly across seed coat.
Image Tags: seed submerged foveate do-not-date elliptic pitted reticulate
Stellaria_longifolia_seed_211_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Stellaria longifolia
Site name: Lake Itasca, Clearwater County, MN
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: oval-orbicular, ~1 mm long; rough, bumpy texture, but generally much less so than other members of family
Image Tags: seed bumpy terrestrial elliptic dateable wrinkled rugose undulate
Calamagrostis_canadensis_floret_2719_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Calamagrostis canadensis
Site name: Williams Prairie, Johnson County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: 2-4 mm long; smooth; shortly awned; finely hairy
Image Tags: awned emergent date-with-caution hairy pubescent
Picea_glauca_needle_1423_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Picea glauca
Site name: Gooseberry Falls State Park, MN
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: linear, 1.5-2 cm long; 4 angled in cross-section; stiff, sharp tipped
Image Tags: leaf needle terrestrial dateable pointed linear pitted foveate
Schoenoplectus_acutus_847_1_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Schoenoplectus acutus
Site name: Palo Alto County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: obovate, flat on one side, convex on other, 2-3 mm long, beak (on broad end of seed) up to 5 mm long, bristles (hairs) not always present
Image Tags: seed emergent date-with-caution bristled beaked rostrate obovate planoconvex
potamogeton_fruit_OMAA_RIPO12_3A_1P_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Potamogeton sp.
Site name: Rice Portage Lake, Carlton County, MN
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: subfossil fruit; ear-shaped; small size suggests that embryo is immature
Image Tags: seed submerged do-not-date subfossilized ear-shaped indented
Polygonum_sagittatum_seed_2315_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Polygonum sagittatum
Site name: MN
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: triangular, 2-3 mm long; shiny, black
Image Tags: seed terrestrial glabrous smooth trigonous dateable
Gleditsia_triacanthos_leaf_abaxial_3167_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Gleditsia triacanthos
Site name: Baker land, Cedar County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: abaxial side (bottom of leaf) pictured; oblong-lanceolate, 2-4 cm long (mature trees) or 1-2 cm long (young trees); weakly roundly toothed; petioles pubescent
Image Tags: leaf terrestrial dateable serrate lanceolate oblong toothed pubescent hairy
Scheuchzeria_palustris_fruit_3045_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Scheuchzeria palustris
Site name: Van Meer Bog, Alger County, MI
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: flattened elliptic, 5-8 mm long; split on one side where seeds released
Image Tags: emergent date-with-caution capsule elliptic
Myriophyllum_spicatum_leaf_2055_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Myriophyllum spicatum
Site name: Devil's Lake, Sauk County, WI
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: 12-21 leaflet pairs
Image Tags: leaf submerged do-not-date
Equisetum_fluviatile_branch_2056_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Equisetum fluviatile
Site name: Busching mound springs, Chickasaw County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: 4-6 angled, hollow
Image Tags: stem emergent dateable ridged segmented
Heteranthera_dubia_seed_1569_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Heteranthera dubia
Site name: Dickenson County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: broadly elliptic, 1 mm long; longitudinally ridged; both ends (hilum and chalazal) are conspicuos
Image Tags: seed elliptic oblong submerged do-not-date ridged
Potamogeton_natans_achene_external_2012_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Potamogeton natans
Site name: Dickinson County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: 3-5 mm long; short beak (near top of seed); loose, shiny, inflated covering often preserved in lake sediments; in photo covering is dried and shriveled
Image Tags: seed submerged do-not-date ear-shaped beaked rostrate inflated
Alnus_incana_catkin_bracht_2144_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Alnus incana
Site name: gravel bar in Yukon River at Whitehorse, Yukon, Canada
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: very weakly 5 lobed
Image Tags: catkin-bract terrestrial lobed
Zizania_aquatica_seed_2046_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Zizania aquatica
Site name: MN
Light type: Reflected Light
Magnification: 8.0
Submitted by: Jimmy Marty
Notes: none
Image Tags: emergent date-with-caution seed oblong hilum-conspicuous
Carex_deweyana_perigynia_585_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Carex deweyana
Site name: Dubuque County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: 4-5 mm long, 3-4 time as long as wide, faintly veined or veinless on both sides; tapered beak with finely serrate margins
Image Tags: terrestrial dateable perigynia beaked rostrate serrate
Eurybia_macrophylla_seed_MNMN_jm_edit_2-600.jpg Unique Identification: Plant Macrofossil
Taxon: Aster macrophyllus
Site name: not specified
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: oblong-cylindric, 2-3 mm long with tapering base; pappus (white hairs) may or may not be present in fossils; lengthwise ridges
Image Tags: terrestrial seed dateable pappus linear hairy bristled oblong ridged
Potamogeton_zosteriformis_seed_internal_2032_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Potamogeton zosteriformis
Site name: Dickinson County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: earlike shape (with covering removed), 4-5 mm long; very short, blunt beak; indented along margin and face; coiled embryo
Image Tags: ear-shaped submerged do-not-date seed coiled beaked rostrate
Carex_lacustris_perigynia_636_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Carex lacustris
Site name: Bog margin, St. Louis County, MN
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: ovate, flattened to nearly round in cross section, 5-7 mm long; > 10 visible nerves; tapering to beak ~1 mm long
Image Tags: emergent date-with-caution perigynia ribbed veined ovate beaked rostrate
Alnus_viridis_seed_2970_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Alnus viridis
Site name: edge of Iron Lake, Bayfield County, WI
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: elliptic, thinly winged, 2-3 mm long; styles persistent; wings may be damaged/missing in subfossil samples.
Image Tags: seed dateable terrestrial elliptic winged stigmas-persistent
Nymphaea_odorata_seed_3226_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Nymphaea odorata
Site name: Baker Prairie Pond, Cedar County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: globose to ellipsoid, 2-4 mm long, 2-2.5 mm wide; slight ridge on one side and small attachment scar at base; olive green to brown; fragile wall, often cracked/fragmented in sediment samples.
Image Tags: floating-leaved seed date-with-caution globose round obovate ridged base-conspicuous hilum-conspicuous
Potamogeton_amplifolius_seed_internal_1998_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Potamogeton amplifolius
Site name: Muscatine County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: earlike shape (with covering removed), 4-5 mm long; pronounced beak up to 1 mm long; coiled embryo
Image Tags: submerged coiled do-not-date seed ear-shaped beaked rostrate
Sparganium_eurycarpum_fruit_1884_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Sparganium eurycarpum
Site name: Mississppi River near Potosi, Grant County, WI
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: obovate, 6-8 mm long, 4-7 mm wide; flattened top; beak 2-4 mm long
Image Tags: emergent date-with-caution seed obovate style-base-persistent
Fraxinus_pennsylvanica_seed_1357_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Fraxinus pennsylvanica
Site name: Johnson County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: fruit linear to spatulate, 2.5-7.5 cm long; wing extending ~1/2 the length of body
Image Tags: terrestrial dateable linear winged
Chenopodium_pratericola_seed_2422_jm_edit_2-600.jpg Unique Identification: Plant Macrofossil
Taxon: Chenopodium pratericola
Site name: sandy hillside near Grover's Lake, NE
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: circular-lenticular, 1-2 mm wide; shiny, textured, plump disk; rounded margins; note notch in margin - this is the attachement scar and also represents the gap between each end of the embryo (which runs circular around the edge of the seed) - gap is very slight in C. pratericola
Image Tags: seed terrestrial shiny glabrous dateable notched round
Ceratophyllum_demersum_seed_218_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Ceratophyllum demersum
Site name: Outlet to Green Lake, Kandiyohi County, MN
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: elliptic in outline, lenticular in cross section, body ~5 mm long; 2-3 marginal spines; body more elongate than C. echinatum woody wall
Image Tags: seed spiny woody submerged do-not-date elliptic
Anemone_canadensis_seed_1616_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Anemone canadensis
Site name: U.S.A.
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: flat, obovate, 3-5 mm; long beak 2-4 mm long; winged; wooly hairs
Image Tags: seed terrestrial dateable beaked hairy winged pubescent rostrate style-persistent obovate
Silene_acaulis_seed_2171_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Silene acualis
Site name: tundra above Bluefish Caves near Old Crow, Yukon, Canada
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: rounded, kidney shaped discs, 0.5-1.5 mm long; ridged margins; lanceolate tubercles (warty bumps) in concentric rows
Image Tags: seed warty tuberculate terrestrial dateable bumpy reniform
Verbena_hastata_seed_2234_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Verbena hastata
Site name: MN
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: compressed-oblong, rounded triangular in cross section 1.5-3 mm long; rounded side is ridged lengthwise; cross ridges also present; margins narrowly flanged; very short, whitish hairs sometimes present
Image Tags: seed oblong emergent terrestrial date-with-caution ridged hilum-conspicuous base-conspicuous
Helianthus_grosseserratus_seed_356_jm_edit_2-600.jpg Unique Identification: Plant Macrofossil
Taxon: Helianthus grosseratus
Site name: not specified
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: compressed-oblong, 3-4 mm long; dark lengthwise streaks/stripes/mottles; smooth
Image Tags: terrestrial seed dateable speckled striped striate
Glyceria_striata_caryopsis_2916_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Glyceria striata
Site name: Williams Prairie, Johnson County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: ovate, 0.5-1.5 mm; prominent indent at base of seed characterstic of Glyceria; 2 persistent, recurved stigmas; reddish-brown
Image Tags: seed emergent date-with-caution bistigmatic indented wrinkled stigmas-persistent obovate rugose
Equisetum_variegatum_stem_2772_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Equisetum variegatum
Site name: Yellowstone National Park, Huckleberry Mountain, WY
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: 1-2.5 cm wide; 5-12 shallow, rough ridges; hollow central cavity 1/3-1/4 of total stem diameter; other smaller cavities present in stem
Image Tags: stem emergent dateable ridged segmented
Carpinus_caroliniana_involucre_adaxial_seed_91_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Carpinus caroliniana
Site name: Stonington, New London County, CT
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: 2-3 cm halbard shaped with basal lobes; coarsely toothed, especially so along one side of center lobe
Image Tags: leaf terrestrial dateable toothed lobed
Leersia_oryzoides_palea_lemma_1047_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Leersia oryzoides
Site name: Boulder County, CO
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: flattened oval, 4-5 mm long, 1-2 mm wide; lemma with conspicous bristles
Image Tags: bristled terrestrial dateable flattened elliptic
Galium_triflorum_seed_3175_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Galium triflorum
Site name: Baker property, Cedar County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: sub-globose-reniform(bean shaped), 1.5-2 mm; covered with hooked bristles except at attachment scar (see seed in bottom left of image)
Image Tags: seed terrestrial dateable elliptic reniform bristled barbellate
Silene_stellata_seed_207_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Silene stellata
Site name: Floyd County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: compressed kidney shaped, 0.5- 1 mm; rounded, irregular shaped tubercles (warty bumps) concentric from hilum (seed base)
Image Tags: seed warty tuberculate terrestrial dateable round bumpy colliculate reniform
Sparganium_angustifolium_fruit_1878_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Sparganium angustifolium
Site name: Muskee Lake, Boulder County, CO
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: spindle shaped, 5-7 mm long; abruptly contracted to a beak 1-3 mm long
Image Tags: emergent date-with-caution fruit beaked rostrate lanceolate
Quercus_macrocarpa_seed_cap_972_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Quercus macrocarpa
Site name: Clearwater County, MN
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: nut depressed to narrowly ovoid, 2-5 cm long, 2-4 cm wide; cup covering 1/3 to 3/4 of nut; marginal cup scales awned, forming a fringe; inside of cup pubescent
Image Tags: seed terrestrial dateable scaled awned fringed
Cyperus_strigosus_achene_801_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Cyperus strigosus
Site name: Gastank Prairie W of Solon, Johnson County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: brown, 3 angled, 1-2 mm long, less than 0.5 mm wide at broad end
Image Tags: seed oblong emergent date-with-caution reticulate trigonous
Iris_virginica_seed_2636_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Iris virginica
Site name: Cayler Prairie, Dickinson County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: flat, round discs to wedge shaped, 4-6 mm
Image Tags: emergent seed date-with-caution round wedge-shaped
Chenopodium_glaucum_seed_2519_jm_edit_2-600.jpg Unique Identification: Plant Macrofossil
Taxon: Chenopodium glaucum
Site name: sand spit, Little Millers Bay, Lake West Okoboji, Dickenson County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: circular-lenticular, 1-2 mm wide; shiny, textured, plump disk; rounded margins; note notch in margin - this is the attachement scar and also represents the gap between each end of the embryo (which runs circular around the edge of the seed) - gap is relatively narrow in C. glaucum
Image Tags: seed terrestrial shiny dateable round notched
Salix_amygdaloides_leaf_adaxial_2831_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Salix amygdaloides
Site name: Dickinson County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: adaxial side of leaf (top of leaf) pictured; thin, lanceolate to lance-ovate, 5-10 x 1-3.5 cm; 3-6 times as long as wide, abruptly acuminate (tapering to a point); serrate; abaxial side (bottom of leaf) with cellular pattern similar to cracked mud
Image Tags: leaf terrestrial dateable serrate tapered acuminate lanceolate
Equisetum_variegatum_fruiting_body_2772_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Equisetum variegatum
Site name: Yellowstone National Park, Huckleberry Mountain, WY
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: up to 1 cm long; sharply tipped
Image Tags: emergent dateable ridged segmented
Iodanthus_pinnatifidus_seed_480_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Iodanthus pinnatifidus
Site name: Washington County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: oval to spatulate, 1-1.2 cm long; visible attachement point; surface pitted-reticulate;
Image Tags: terrestrial dateable seed pitted foveate reticulate hilum-conspicuous
Nyssa_sylvatica_seed_2811_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Nyssa sylvatica
Site name: Hampshire County, MA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: compressed ovoid to ellipsoid, ~7 x 5 x 3 mm; several grooves/stripes on each face
Image Tags: seed terrestrial dateable elliptic woody
Prunus_serotina_seed_fleshy_1726_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Prunus serotina
Site name: USA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: pit spheroid, 7-9 mm in diameter; low ridge along one side (visible on left side of top right pit in image); inner surface of pit is minutely cellular-pitted; hole on attachment end of pit; ~ 10 mm thick with flesh, dark purple to black colored
Image Tags: fleshy pitted terrestrial dateable
Potamogeton_richardsonii_seed_internal_2024_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Potamogeton richardsonii
Site name: Dickinson County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: earlike shape (with covering removed), 2-4 mm long; short beaked; indented along margin and face; coiled embryo
Image Tags: submerged do-not-date seed coiled beaked rostrate ear-shaped
Chamaedaphne_calyculata_seed_capsule_open_896_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Chamaedaphne calyculata
Site name: Van Meer Bog, Alger County, MI
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: rounded, 5 sectioned capsule, up to 6 mm wide; indented top; style persistent from top of capsule
Image Tags: terrestrial dateable indented style-persistent
Polygonum_amphibium_perianth_2993_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Polygonum amphibium
Site name: marsh near Green Lake, Kandiyohi County, MN
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: lens shaped achene, 2-4 mm long; smooth, shiny, dark brown
Image Tags: emergent date-with-caution
Carex_squarrosa_perigynia_736_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Carex squarrosa
Site name: Jefferson County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: obconic, inflated, body 3.5-6 mm, beak 2-3.5 mm; 2 strong ribs at summit, otherwise very sparsely and obscurely veined; beak teeth 0.2 mm long
Image Tags: emergent date-with-caution beaked rostrate perigynia ribbed
Vaccinium_oxycoccos_fruit_932_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Vaccinium oxycoccos
Site name: Hubbard County, MN
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: red, globose, 6-12 mm wide
Image Tags: terrestrial dateable globose fleshy
Callitriche_hermaphroditica_seed_108_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Callitriche hermaphroditica
Site name: Nye County, NV
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: elliptic-reniform, 1-2 mm long; divided into 4 segments
Image Tags: submerged reniform elliptic seed do-not-date textured bumpy colliculate
Echinochloa_crus-galli_seed_2609_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Echinochloa crus-galli
Site name: Three Corner Pond, Dickenson County, IA
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: elliptic-ovate, 2.5-3.5 mm long; awn may or may not be present; awn 2-4 cm long
Image Tags: terrestrial dateable seed ovate glabrous smooth veined
Stellaria_aquatica_seed_210_jm_edit-600.jpg Unique Identification: Plant Macrofossil
Taxon: Stellaria aquatica
Site name: Benton County, MN
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: oval-orbicular, ~1 mm long; surface is hoarfrost patterned; margins covered in large, rounded tubercles (warty bumps)
Image Tags: seed warty tuberculate terrestrial dateable bumpy round
alnus_rugosa_porearches_jm_edit-600.jpg Unique Identification: Pollen
Taxon: Alnus rugosa
Site name: Cushing Reference Collection
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: arches
Image Tags: none
quercus_macrocarpa_colpi_jm_edit-600.jpg Unique Identification: Pollen
Taxon: Quercus macrocarpa
Site name: Cushing Reference Collection
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: colpi
Image Tags: none
quercus_macrocarpa_texture_jm_edit-600.jpg Unique Identification: Pollen
Taxon: Quercus macrocarpa
Site name: Cushing Reference Collection
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: surface texture
Image Tags: none
Betula_papyrifera_pore-600.jpg Unique Identification: Pollen
Taxon: Betula papyrifera
Site name: Cushing Reference Collection
Light type: Plane-Polarized Light
Magnification: 100.0
Submitted by: Jimmy Marty
Notes: none
Image Tags: pore
picea_mariana_bladderbodygrade_zoom_jm_edit-600.jpg Unique Identification: Pollen
Taxon: Picea mariana
Site name: Cushing Reference Collection
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: texture grade from body to bladder
Image Tags: none
quercus_alba_colpi_top_jm_3_edit-600.jpg Unique Identification: Pollen
Taxon: Quercus alba
Site name: Cushing Reference Collection
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: colpi
Image Tags: none
ambrosia_trifida_texture_jm_2_edit-600.jpg Unique Identification: Pollen
Taxon: Ambrosia trifida
Site name: Cushing Reference Collection
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: surface texture
Image Tags: none
helianthus_annus_colpi_jm_2_edit-600.jpg Unique Identification: Pollen
Taxon: Helianthus anuus
Site name: Cushing Reference Collection
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: colpi
Image Tags: none
picea_mariana_body_jm_edit-600.jpg Unique Identification: Pollen
Taxon: Picea mariana
Site name: Cushing Reference Collection
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: body
Image Tags: none
quercus_alba_colpi_side_jm_edit-600.jpg Unique Identification: Pollen
Taxon: Quercus alba
Site name: Cushing Reference Collection
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: colpi
Image Tags: none
ambrosia_trifida_edge_jm_edit-600.jpg Unique Identification: Pollen
Taxon: Ambrosia trifida
Site name: Cushing Reference Collection
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: wall
Image Tags: none
chenopodium_album_wall_jm_edit-600.jpg Unique Identification: Pollen
Taxon: Chenopodium album
Site name: Cushing Reference Collection
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: wall
Image Tags: none
abies_balsamea_bodybladdergrade_jm_edit-600.jpg Unique Identification: Pollen
Taxon: Abies balsamea (L.) Mill.
Site name: Cushing Reference Collection
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: texture grade from body to bladder
Image Tags: none
ulmus_rubra_texture_jm_3_edit-600.jpg Unique Identification: Pollen
Taxon: Ulmus rubra
Site name: Cushing Reference Collection
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: surface texture
Image Tags: none
phleum_pratense_sidepore_jm_edit-600.jpg Unique Identification: Pollen
Taxon: Phleum pratense
Site name: Cushing Reference Collection
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: pore (side view)
Image Tags: none
helianthus_annus_spikes_jm_edit-600.jpg Unique Identification: Pollen
Taxon: Helianthus anuus
Site name: Cushing Reference Collection
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: spikes
Image Tags: none
picea_mariana_bladderbodygrade_cap_jm_edit-600.jpg Unique Identification: Pollen
Taxon: Picea mariana
Site name: Cushing Reference Collection
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: cap
Image Tags: none
abies_balsamea_cap_jm_edit-600.jpg Unique Identification: Pollen
Taxon: Abies balsamea (L.) Mill.
Site name: Cushing Reference Collection
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: cap
Image Tags: none
A2809tmi-600.jpg Unique Identification: Pollen
Taxon: Juglans nigra
Site name: lake
Light type: Plane-Polarized Light
Magnification: 40x
Submitted by: cs
Notes: none
Image Tags: none
quercus_macrocarpa_side_jm_edit-600.jpg Unique Identification: Pollen
Taxon: Quercus macrocarpa
Site name: Cushing Reference Collection
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: colpi
Image Tags: none
ambrosia_trifida_texture_jm_3_edit-600.jpg Unique Identification: Pollen
Taxon: Ambrosia trifida
Site name: Cushing Reference Collection
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: surface texture
Image Tags: none
tilia_americana_wall_jm_edit-600.jpg Unique Identification: Pollen
Taxon: Tilia americana
Site name: Cushing Reference Collection
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: wall
Image Tags: none
pinus_resinosa_belly_jm_edit-600.jpg Unique Identification: Pollen
Taxon: Pinus resinosa
Site name: Cushing Reference Collection
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: belly
Image Tags: none
Nuphar_variegata-600.jpg Unique Identification: Pollen
Taxon: Nuphar variegata
Site name: Cushing Reference Collection
Light type: Plane-Polarized Light
Magnification: 100.0
Submitted by: Jimmy Marty
Notes: none
Image Tags: body
alnus_rugosa_arches_jm_2_edit-600.jpg Unique Identification: Pollen
Taxon: Alnus rugosa
Site name: Cushing Reference Collection
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: arches
Image Tags: none
zizania_palustris_wallpore_jm_edit-600.jpg Unique Identification: Pollen
Taxon: Zizania palustris
Site name: Cushing Reference Collection
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: wall, pore
Image Tags: none
Nuphar_variegata_spikes-600.jpg Unique Identification: Pollen
Taxon: Nuphar variegata
Site name: Cushing Reference Collection
Light type: Plane-Polarized Light
Magnification: 100.0
Submitted by: Jimmy Marty
Notes: none
Image Tags: spikes
artemisia_frigida_colpiparty_jm_3_edit-600.jpg Unique Identification: Pollen
Taxon: Artemisia frigida
Site name: Cushing Reference Collection
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: colpi from multiple angles
Image Tags: none
pinus_strobus_cap_jm_edit-600.jpg Unique Identification: Pollen
Taxon: Pinus strobus
Site name: Cushing Reference Collection
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: cap
Image Tags: none
tilia_americana_texture_jm_edit-600.jpg Unique Identification: Pollen
Taxon: Tilia americana
Site name: Cushing Reference Collection
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: surface texture
Image Tags: none
pinus_strobus_belly_jm_2_edit-600.jpg Unique Identification: Pollen
Taxon: Pinus strobus
Site name: Cushing Reference Collection
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: belly
Image Tags: none
quercus_alba_texture_jm_edit-600.jpg Unique Identification: Pollen
Taxon: Quercus alba
Site name: Cushing Reference Collection
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: surface texture
Image Tags: none
alnus_crispa_arches_jm_2_edit_open-600.jpg Unique Identification: Pollen
Taxon: Alnus crispa (Aiton) Pursh
Site name: Cushing Reference Collection
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: arches
Image Tags: none
alnus_crispa_arches_jm_edit-600.jpg Unique Identification: Pollen
Taxon: Alnus crispa (Aiton) Pursh
Site name: Cushing Reference Collection
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: arches
Image Tags: none
artemisia_frigida_wall_jm_edit-600.jpg Unique Identification: Pollen
Taxon: Artemisia frigida
Site name: Cushing Reference Collection
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: wall
Image Tags: none
ulmus_rubra_porewall_jm_edit-600.jpg Unique Identification: Pollen
Taxon: Ulmus rubra
Site name: Cushing Reference Collection
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: wall
Image Tags: none
ulmus_rubra_jm_edit-600.jpg Unique Identification: Pollen
Taxon: Ulmus rubra
Site name: Cushing Reference Collection
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: surface texture
Image Tags: none
alnus_rugosa_pores_jm_edit-600.jpg Unique Identification: Pollen
Taxon: Alnus rugosa
Site name: Cushing Reference Collection
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: pores
Image Tags: none
Betula_papyrifera_wall-600.jpg Unique Identification: Pollen
Taxon: Betula papyrifera
Site name: Cushing Reference Collection
Light type: Plane-Polarized Light
Magnification: 100.0
Submitted by: Jimmy Marty
Notes: none
Image Tags: wall
phleum_pratense_wall_jm_edit-600.jpg Unique Identification: Pollen
Taxon: Phleum pratense
Site name: Cushing Reference Collection
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: wall
Image Tags: none
ambrosia_trifida_colpi_jm_edit-600.jpg Unique Identification: Pollen
Taxon: Ambrosia trifida
Site name: Cushing Reference Collection
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: colpi
Image Tags: none
pinus_resinosa_cap_jm_edit-600.jpg Unique Identification: Pollen
Taxon: Pinus resinosa
Site name: Cushing Reference Collection
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: cap
Image Tags: none
helianthus_annus_colpi_jm_edit-600.jpg Unique Identification: Pollen
Taxon: Helianthus anuus
Site name: Cushing Reference Collection
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: colpi equatorial view
Image Tags: none
pinus_resinosa_bellyfocus_jm_3_edit-600.jpg Unique Identification: Pollen
Taxon: Pinus resinosa
Site name: Cushing Reference Collection
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: belly
Image Tags: none
acer_rubrum_texture_jm_edit-600.jpg Unique Identification: Pollen
Taxon: Acer rubrum L.
Site name: Cushing Reference Collection
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: surface texture
Image Tags: none
tilia_americana_pores_jm_edit-600.jpg Unique Identification: Pollen
Taxon: Tilia americana
Site name: Cushing Reference Collection
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: pores
Image Tags: none
Typha_latifolia-600.jpg Unique Identification: Pollen
Taxon: Typha latifolia
Site name: Cushing Reference Collection
Light type: Plane-Polarized Light
Magnification: 100.0
Submitted by: Jimmy Marty
Notes: none
Image Tags: none
phleum_pratense_pore_jm_edit-600.jpg Unique Identification: Pollen
Taxon: Phleum pratense
Site name: Cushing Reference Collection
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: pore
Image Tags: none
taraxcum_officinale_texture_jm_edit-600.jpg Unique Identification: Pollen
Taxon: Taraxacum officinale
Site name: Cushing Reference Collection
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: body
Image Tags: none
chenopodium_album_pores_jm_2_edit-600.jpg Unique Identification: Pollen
Taxon: Chenopodium album
Site name: Cushing Reference Collection
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: pores
Image Tags: none
taraxcum_officinale_wall_jm_edit-600.jpg Unique Identification: Pollen
Taxon: Taraxacum officinale
Site name: Cushing Reference Collection
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: belly
Image Tags: none
acer_rubrum_wall_jm_edit-600.jpg Unique Identification: Pollen
Taxon: Acer rubrum L.
Site name: Cushing Reference Collection
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: wall
Image Tags: none
Radiolarian_4_GR-600.jpg Unique Identification: Radiolarian
Site name: not specified
Light type: Plane-Polarized Light
Magnification: x40
Submitted by: Guy Rothwell
Notes: SIOCLMR 164G CC, biogenic-silica
Image Tags: none
Radiolarian_3_GR-600.jpg Unique Identification: Radiolarian
Site name: not specified
Light type: Plane-Polarized Light
Magnification: x40
Submitted by: Guy Rothwell
Notes: SIOCLMR 164G CC, biogenic-silica
Image Tags: none
Radiolarian_2_GR-600.jpg Unique Identification: Radiolarian
Site name: not specified
Light type: Plane-Polarized Light
Magnification: X40
Submitted by: Guy Rothwell
Notes: SIOCLMR 164G CC, biogenic-silica
Image Tags: none
Radiolarian_1_GR-600.jpg Unique Identification: Radiolarian
Site name: not specified
Light type: Plane-Polarized Light
Magnification: x40
Submitted by: Guy Rothwell
Notes: SIOCLMR 164G CC, biogenic-silica
Image Tags: none
Silicoflagellate_ppl-600.jpg Unique Identification: Silicoflagellate
Site name: Angola Basin, SE Atlantic
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: Guy Rothwell
Notes: centric-diatoms biogenic-silica
Image Tags: none
Sponge_spicules_11_GR-600.jpg Unique Identification: Sponge
Site name: not specified
Light type: Plane-Polarized Light
Magnification: x4
Submitted by: Guy Rothwell
Notes: spicules biogenic-silica triaxon tetraxon
Image Tags: none
image0190-600.jpg Unique Identification: Sponge
Site name: Peten Itza
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: Andy Cohen
Notes: sponge megasclere
Image Tags: none
Sponge_spicules_10_GR-600.jpg Unique Identification: Sponge
Site name: not specified
Light type: Plane-Polarized Light
Magnification: x4
Submitted by: Guy Rothwell
Notes: spicules biogenic-silica triaxon tetraxon
Image Tags: none
spicule_pp_01-600.jpg Unique Identification: Sponge
Site name: not specified
Light type: Plane-Polarized Light
Magnification: 400x
Submitted by: Amy Myrbo
Notes: bumps
Image Tags: none
sponge_tissue_OMAA_RIPO12_3A_1P_1_jm_2_edit-600.jpg Unique Identification: Sponge
Site name: Rice Portage Lake, Carlton County, MN
Light type: Reflected Light
Magnification: not specified
Submitted by: Jimmy Marty
Notes: sponge tissue; networks of bubble like tissue found in sediment samples in fragments 1 -4 mm long; spicule structure evident in plane polarized light at high power; isotropic under cross polarization
Image Tags: isotropic bubble connected spongy
Siliceous_debris_1ppl1-600.jpg Unique Identification: Sponge
Site name: Angola Basin, SE Atlantic
Light type: Plane-Polarized Light
Magnification: not specified
Submitted by: Guy Rothwell
Notes: Mostly broken monaxon spicules and centric diatom debris, with rare radiolarians and foraminifera, spicules centric-diatoms foraminifera radiolaria biogenic-silica monaxon
Image Tags: none
sponge1_TwinLk_MN_40xBF_ME-600.jpg Unique Identification: Sponge
Site name: Twin Lake
Light type: not specified
Magnification: not specified
Submitted by: Mark Edlund
Notes: This is a freshwater sponge spicule of the megasclere type.
Image Tags: siliceous transparent hollow needle-like pointed thin colorless sponge spicule megasclere
Sponge_spicules_12_GR-600.jpg Unique Identification: Sponge
Site name: not specified
Light type: Plane-Polarized Light
Magnification: X4
Submitted by: Guy Rothwell
Notes: spicules biogenic-silica triaxon tetraxon
Image Tags: none
GLAD6-BOS04-3C-2H-1_10.9cm_thickPM_40x_pp_2-600.jpg Unique Identification: Thick Plant Matter
Site name: Lake Bosumtwi
Light type: Plane-Polarized Light
Magnification: 400
Submitted by: Jess Rodysill
Notes: none
Image Tags: none
GLAD6-BOS04-3C-2H-1_10.9cm_thickPM_40x_cp-600.jpg Unique Identification: Thick Plant Matter
Site name: Lake Bosumtwi
Light type: Cross-Polarized Light
Magnification: 400
Submitted by: Jess Rodysill
Notes: none
Image Tags: none
GLAD6-BOS04-3C-2H-1_10.9cm_thickPM_40x_pp-600.jpg Unique Identification: Thick Plant Matter
Site name: Lake Bosumtwi
Light type: Plane-Polarized Light
Magnification: 400
Submitted by: Jess Rodysill
Notes: none
Image Tags: none
GLAD6-BOS04-3C-1H-1_66.5cm_thickPM_40x_pp-600.jpg Unique Identification: Thick Plant Matter
Site name: Lake Bosumtwi
Light type: Plane-Polarized Light
Magnification: 400
Submitted by: Jess Rodysill
Notes: none
Image Tags: none
GLAD6-BOS04-3C-1H-1_66.5cm_thickPM_40x_cp-600.jpg Unique Identification: Thick Plant Matter
Site name: Lake Bosumtwi
Light type: Cross-Polarized Light
Magnification: 400
Submitted by: Jess Rodysill
Notes: none
Image Tags: none
GLAD6-BOS04-3C-2H-1_10.9cm_thickPM_40x_cp_2-600.jpg Unique Identification: Thick Plant Matter
Site name: Lake Bosumtwi
Light type: Cross-Polarized Light
Magnification: 400
Submitted by: Jess Rodysill
Notes: none
Image Tags: none