Showing 101 - 125 of 155 results for dateable
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 (Aster macrophyllus)
oblong-cylindric, 2-3 mm long with tapering base; pappus (white hairs) may or may not be present in fossils; lengthwise r...

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

Plant Macrofossil (Solidago gigantea)
oblong-cylindric, 1-2 mm long with tapering base; pubescent; pappus (short white bristles) may or may not be present in f...

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 (Capsella bursa-pastoris)
compressed-elliptic, 0.5-1 mm long; attachment point slightly darker; ridged longitudinally due to bent embryo

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

Plant Macrofossil (Cerastium arvense)
angular-ovate to kidney shaped, 0.75-1 mm long; covered in many small tubercles (warty bumps) beginning at hilum (base) a...

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 (Stellaria longifolia)
oval-orbicular, ~1 mm long; rough, bumpy texture, but generally much less so than other members of family

Plant Macrofossil (Stellaria media)
orbicular, ~1 mm long; pinched hilum (seed base); covered in angular-rounded tubercles (warty bumps); fewer tubercles rel...

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

Plant Macrofossil (Andromeda glaucophlla)
rounded, 5 sectioned capsule, ~5 mm wide; indented top; style persistent at top of capsule

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 (Chamaedaphne calyculata)
rounded, 5 sectioned capsule, up to 6 mm wide; indented top; style persistent from top of capsule

Plant Macrofossil (Vaccinium oxycoccos)
abaxial (bottom) side shown; ovate to narrowly triangular, 2-10 mm long, 1-3 mm wide; bottom of leaf much paler than top;...

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...

Plant Macrofossil (Medicago sativa)
compressed kidney shaped, 2-3 mm long; narrow line runs obliquely on each face from hilum (seed attachment scar)

Plant Macrofossil (Lycopus americanus)
adaxial (top) side of leaf shown; lanceolate, 3-8 cm long, 1-4 cm wide; margins coarsely, irregularly toothed

Plant Macrofossil (Lycopus americanus)
obovate to compressed triangular, 1-2 mm long; white mouth at seed attachment base; globules on inner face; globules and ...

Plant Macrofossil (Picea glauca)
biconvex, 2-3 mm long; wing 5-8 mm long

Plant Macrofossil (Picea mariana)
biconvex, 1.5-2 mm long; wing 2-5 mm long

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