Showing 26 - 50 of 155 results for dateable
Plant Macrofossil (Betula pumila)
adaxial (top) surface; rounded to obovate, 2-4 cm long, 1-3 cm wide, coarsely toothed margins, teeth may be blunt or shar...

Plant Macrofossil (Abies balsamea)
Abaxial (bottom) surface pictured on top, adaxial (top) surface below. Base of needle on righthand side of photograph. No...

Plant Macrofossil (Alnus viridis)
elliptic, thinly winged, 2-3 mm long; styles persistent; wings may be damaged/missing in subfossil samples.

Plant Macrofossil (Picea mariana)
Note blunt tip, base of needle on right hand side of photograph. Four-angled in cross section, 6-18 mm long.

Plant Macrofossil (Betula papyrifera)
winged, 1.5-3 mm long, nutlet 0.5-1 mm wide, wings slightly wider than nutlet; wings may be damaged/missing in subfossil ...

Plant Macrofossil (Betula pumila)
3 lobed, rounded, sometimes dotted with resin.

Plant Macrofossil (Betula pumila)
abaxial (bottom) surface; rounded to obovate, 2-4 cm long, 1-3 cm wide, coarsely toothed margins, teeth may be blunt or s...

Plant Macrofossil (Betula papyrifera)
3 lobed, lobes divergent, forming cross-like or fleur-de-lis shape. 6-12 mm.

Plant Macrofossil (Alnus serrulata)
obovoid, flattened; narrowly winged on margins, 2-3 mm long

Plant Macrofossil (Carex deweyana)
4-5 mm long, 3-4 time as long as wide, faintly veined or veinless on both sides; tapered beak with finely serrate margins...

Plant Macrofossil (Carex jamesii)
subglobose, 3-4.5 mm long, 1.5-2 times as long as wide; short, slender beak

Plant Macrofossil (Carex backii)
rounded trigonous, obovate, inconspicuously veined, 4-5.4 mm; beak 2 mm long, inconspicuously serrate

Plant Macrofossil (Cryptotaenia canadensis)
compressed-oblong, 5-6 mm long, ribbed, style persistent

Plant Macrofossil (Taenidia integerrima)
crescent-wedge shaped , 4-5 mm long, 3-4 mm wide; slightly compressed laterally, shallow ribbed

Plant Macrofossil (Eupatorium purpureum)
oblong, tapering to base, 3.5-4.5 mm long, indistinctly 5 sided; speckled with small brown-red dots; white base; coarse, ...

Plant Macrofossil (Alnus serrulata)
weakly 5 lobed, with center lobe being most prominent; may be dotted with resin

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

Plant Macrofossil (Carpinus caroliniana)
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 (...

Plant Macrofossil (Carex backii)
rounded trigonous, 2-2.5 mm long; weak reticulate texture; style base (top of seed) rounded with indent

Plant Macrofossil (Carex jamesii)
rounded trigonous, 1.8-2.3 mm long; weak reticulate texture; conspicuos style base (top of seed) rounded with indent

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

Plant Macrofossil (Nyssa sylvatica)
compressed ovoid to ellipsoid, ~7 x 5 x 3 mm; several grooves/stripes on each face

Plant Macrofossil (Campanula americana)
compressed, oval to elliptic, 0.5-1 mm long; glossy; conspicuous seed coat lighter in color than body

Plant Macrofossil (Eupatorium rugosum)
oblong, tapering to base, 2-2.5 mm long, 5 sided; glabrous (no hairs/spots); white base; coarse, white pappus may or may...

Plant Macrofossil (Cerastium nutans)
angular-ovate, flat; ~0.5 mm long; surface with distinct tubercles (wart like projections); must compare to other tubercl...

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