Showing 51 - 75 of 155 results for dateable
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 (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 (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...

Plant Macrofossil (Linum striatum)
wedge shaped, like narrow sector of sphere, 1-2 mm long; one side nearly straight

Plant Macrofossil (Quercus palustris)
nut 10-16 mm long, 9-15 mm wide; cup shallow, saucer shaped, covering 1/5 to 1/4 of nut

Plant Macrofossil (Acer saccharum)
opposite bud scars, glabrous (shiny); lenticels (white marks)

Plant Macrofossil (Atriplex patula)
lens shaped in cross section, circular in outline; 1-3 mm wide; dull, dark brown to black; outline of ring-shaped embryo ...

Plant Macrofossil (Equisetum variegatum)
1-2.5 cm wide; 5-12 shallow, rough ridges; hollow central cavity 1/3-1/4 of total stem diameter; other smaller cavities ...

Plant Macrofossil (Andromeda glaucophlla)
linear to narrowly oval, 2-5 cm long, 3-10 mm wide; sharp pointed with a small spine; leathery; margins may be rolled und...

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116 Church Street NE, Minneapolis, MN 55455

P: 612-626-7889

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