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15 Specimen Results
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Epoch:
Oligocene
Individual/Organization:
Harksen, J.C.
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Phylum
Chordata (2)
Mollusca (13)
Order
Artiodactyla (1)
Rodentia (1)
Stylommatophora (13)
Class
Gastropoda (13)
Mammalia (2)
Family
Castoridae (1)
Helicidae (13)
Leptomerycidae (1)
Genus
Helix (13)
Leptomeryx (1)
Palaeocastor (1)
Individual/Organization
Walker, M.V. (14)
Elmore, E.L. (1)
Period
Paleogene (15)
Epoch
Oligocene (15)
Age
Rupelian (1)
Formation
Brule (14)
Member
Poleside (14)
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United States of America (15)
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South Dakota (15)
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Pennington (1)
Shannon (1)