Southwest of Eagles Nest Butte ( of the United States)

Where: Washabaugh County, South Dakota (43.5° N, 101.9° W: paleocoordinates 44.3° N, 96.0° W)

• coordinate based on political unit

When: Arikareean (29.5 - 18.5 Ma)

Environment/lithology: terrestrial

Primary reference: F. B. Loomis. 1924. Miocene oreodonts in the American Museum. Bulletin of the American Museum of Natural History 51(1):1-37 [J. Alroy/J. Alroy/J. Marcot]more details

PaleoDB collection 17690: authorized by John Alroy, entered by John Alroy on 05.08.1996

Creative Commons license: CC BY (attribution)

Taxonomic list

• see Schultz and Falkenbach 1949
not clear if this includes Oak Creek
Mammalia
 Artiodactyla - Merycoidodontidae
"Promerycochoerus montanus" = Promerycochoerus superbus, "Promerycochoerus thomsoni n. sp." = Promerycochoerus carrikeri
"Promerycochoerus montanus" = Promerycochoerus superbus Leidy 1870 oreodont
"female" Promerycochoerus "thomsoni" from same bed as Loomis' type
"Promerycochoerus thomsoni n. sp." = Promerycochoerus carrikeri Peterson 1907 oreodont