Showing 76 - 100 of 155 results for dateable
Plant Macrofossil (Stellaria graminea)
oval-orbicular, ~1 mm long; covered in dendritic (branched projections) tubrercles (warty bumps)

Plant Macrofossil (Chamaedaphne calyculata)
abaxial (bottom) side shown; oval, 1-5 cm long and 3-15 mm wide; tips may be rounded or pointed; leathery; short petioles...

Plant Macrofossil (Chamaedaphne calyculata)
adaxial (top) side shown; oval, 1-5 cm long and 3-15 mm wide; tips may be rounded or pointed; leathery; short petioles; m...

Plant Macrofossil (Kalmia angustifolia)
abaxial (bottom) side shown; elliptic-oblong, 2-5 cm long, 0.5-2 cm wide; bottom of leaf paler than top; tips may be roun...

Plant Macrofossil (Kalmia angustifolia)
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...

Plant Macrofossil (Kalmia angustifolia)
rounded, 5 sectioned capsule, 2.5-4.5 mm in diameter

Plant Macrofossil (Kalmia angustifolia)
rounded, 5 sectioned capsule, 2.5-4.5 mm in diameter

Plant Macrofossil (Leersia oryzoides)
flattened oval, 4-5 mm long, 1-2 mm wide; lemma with conspicous bristles

Plant Macrofossil (Populus tremuloides)
ovate, minute, 0.5-0.8 mm; covered in white hairs; conspicuous white-light yellow base

Plant Macrofossil (Rumex occidentalis)
triangular, sides slightly convex, 1-2 mm; smooth, shiny; embryo attached to one side (rather than to a corner as in Poly...

Plant Macrofossil (Anemone canadensis)
flat, obovate, 3-5 mm; long beak 2-4 mm long; winged; wooly hairs

Plant Macrofossil (Boehmeria cylindrica)
obovate-compressed, 0.5-0.7 mm long; pointed style base (tip); body surrounded by wing-like ring of spongy tissue, except...

Plant Macrofossil (Carpinus caroliniana)
2-3 cm halbard shaped with basal lobes; coarsely toothed, especially so along one side of center lobe

Plant Macrofossil (Triodanis perfoliata)
compressed elliptic, biconvex, less than 0.5 mm long; glossy

Plant Macrofossil (Viola papilionacea)
obovate-elliptic, 1.8-2.2 mm long; prominent elongated white ridge on one side of seed attachement scar (raphe); mottled ...

Plant Macrofossil (Helianthus grosseratus)
compressed-oblong, 3-4 mm long; dark lengthwise streaks/stripes/mottles; smooth

Plant Macrofossil (Impatiens capensis)
elliptic, four angled, narrowing at base, ~4 x 2.5 x 2 mm; length wise ridges; surface usually warty or wrinkly

Plant Macrofossil (Euphorbia corollata)
obovate, 2-4 mm long; distinct longitudinal line present; mottled brown and white

Plant Macrofossil (Rorippa palustris)
roundish-ovate (unlike others in family), less than 0.5 mm; reticulate dimpled

Plant Macrofossil (Silene acualis)
rounded, kidney shaped discs, 0.5-1.5 mm long; ridged margins; lanceolate tubercles (warty bumps) in concentric rows

Plant Macrofossil (Equisetum fluviatile)
~9-25 shallow ridges; central cavity large ~4/5 of total stem diameter; other smaller cavities present in stem

Plant Macrofossil (Larix laricina)
Yellow-brown, male cones pictured. Note bud scars on twig surface.

Plant Macrofossil (Equisetum variegatum)
up to 1 cm long; sharply tipped

Plant Macrofossil (Andromeda glaucophlla)
obovate-kidney shaped, 0.7-1.2 mm long

Contact Information

CSD Facility

116 Church Street NE, Minneapolis, MN 55455

P: 612-626-7889

Connect on Social Media