Northwestern End of Seamen Hills (Chadronian) (Eocene of the United States)

Where: Niobrara County, Wyoming (43.0° N, 104.5° W: paleocoordinates 44.4° N, 95.8° W)

• coordinate based on political unit

When: Chadronian (37.2 - 33.9 Ma)

Environment/lithology: terrestrial

Primary reference: X. Wang. 1994. Phylogenetic systematics of the Hesperocyoninae (Carnivora: Canidae). Bulletin of the American Museum of Natural History 221:1-207 [J. Alroy/J. Alroy/J. Alroy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 16998: authorized by John Alroy, entered by John Alroy on 05.08.1996

Creative Commons license: CC BY (attribution)

Taxonomic list

Mammalia
 Carnivora - Ursidae
Parictis gilpini1 Clark and Guensburg 1972 bear
Chadron Fm., NW end of "Seemen Hills" in Niobrara Co.
 Carnivora - Canidae
Hesperocyon gregarius Cope 1873 canid
15, 20, and 50 ft below PWL
 Ungulata - Merycoidodontidae
"Merycoidodon culbertsoni n. sp." = Merycoidodon (Merycoidodon) culbertsoni2
"Merycoidodon culbertsoni n. sp." = Merycoidodon (Merycoidodon) culbertsoni2 Leidy 1848 oreodont
"Merycoidodon culbertsoni browni": NW end of Seamen Hills