Showing 26 - 50 of 155 results for dateable
Plant Macrofossil (Campanula americana)
compressed, oval to elliptic, 0.5-1 mm long; glossy; conspicuous seed coat lighter in color than body

Plant Macrofossil (Agastache foeniculum)
oblong rounded-triangular, 1-1.5 mm long; surface ridged, with bristles clustered at top and along margins

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 (Polygonum scandens)
triangular in cross section, ~ 4 mm long, ~3.5 mm wide at widest point; smooth and shiny; perianth (outer covering) most ...

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

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

Plant Macrofossil (Betula alleghaniensis)
sharply 3-lobed, ciliate (hairs) along margins, 6-13 mm long

Plant Macrofossil (Betula pumila)
very narrowly winged, rounded, 2-3 mm long, 2-4 mm wide; 2 stubby style bases persistent; woody, flat face

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

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

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 (Iodanthus pinnatifidus)
oval to spatulate, 1-1.2 cm long; visible attachement point; surface pitted-reticulate;

Plant Macrofossil (Salvia lyrata)
elliptic compressed-triangular, 2-2.5 mm long; surface marbled with streaks and/or netted lines

Plant Macrofossil (Fraxinus nigra)
fruit flat, lanceolate to oblanceolate, ~2.5-4 cm x 6-10 mm; very small notch at tip of wing

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

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116 Church Street NE, Minneapolis, MN 55455

P: 612-626-7889

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