Showing 76 - 100 of 155 results for dateable
Plant Macrofossil (Carex backii)
rounded trigonous, obovate, inconspicuously veined, 4-5.4 mm; beak 2 mm long, inconspicuously serrate

Plant Macrofossil (Rudbeckia triloba)
oblong, tapering slightly to base; 2-2.5 mm long; 4 sided

Plant Macrofossil (Quercus macrocarpa)
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, fo...

Plant Macrofossil (Quercus macrocarpa)
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, fo...

Plant Macrofossil (Quercus velutina)
nut ovoid, 6-13 mm long; cup bowl shaped, covering 1/2 of nut; large, pubescent scales; marginal scales projecting, formi...

Plant Macrofossil (Quercus velutina)
nut ovoid, 6-13 mm long; cup bowl shaped, covering 1/2 of nut; large, pubescent scales; marginal scales projecting, formi...

Plant Macrofossil (Morus rubra)
oval-lenticular to ovate, 1.5-3 mm long; a light colored, slender attachment stalk appressed to thinnest edge of seed; in...

Plant Macrofossil (Claytonia virginica)
oval-lenticular, 1-2 mm; black, very shiny; note marginal cleft plugged with white material

Plant Macrofossil (Fraxinus americana)
fruit linear to oblanceolate, 3-5 cm; wing extending 1/3 the length of the body

Plant Macrofossil (Fraxinus pennsylvanica)
fruit linear to spatulate, 2.5-7.5 cm long; wing extending ~1/2 the length of body

Plant Macrofossil (Platanus occidentalis)
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 pers...

Plant Macrofossil (Ranunculus abortivus)
lenticular in cross-section, elliptic in outline, ~1.5 mm long; beak present, but very short

Plant Macrofossil (Sambucus canadensis)
elliptic-ovate in outline compressed triangular in cross section, 2-3 mm long; very slightly arched inward; crosswise wri...

Plant Macrofossil (Silene nivea)
rounded, kidney shaped, 0.5-1.5 mm long; dark tipped, cone shaped tubercles (warty bumps) in concentric rows, increasing ...

Plant Macrofossil (Silene stellata)
compressed kidney shaped, 0.5- 1 mm; rounded, irregular shaped tubercles (warty bumps) concentric from hilum (seed base)

Plant Macrofossil (Stellaria aquatica)
oval-orbicular, ~1 mm long; surface is hoarfrost patterned; margins covered in large, rounded tubercles (warty bumps)

Plant Macrofossil (Larix laricina)
Base of needle on righthand side, except middle needle oriented with base on lefthand side. Note blunt tip, linear shape,...

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

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

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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