Hay Stack Butte (Miocene of the United States)

Where: Todd County, South Dakota (43.2° N, 100.7° W: paleocoordinates 43.7° N, 97.6° W)

• coordinate based on political unit

When: Miocene (23.0 - 5.3 Ma)

Environment/lithology: terrestrial

Primary reference: C. B. Schultz and C. H. Falkenbach. 1941. Ticholeptinae, a new subfamily of oreodonts. Bulletin of the American Museum of Natural History 79(1):1-105 [J. Alroy/J. Alroy/J. Marcot]more details

PaleoDB collection 18191: authorized by John Alroy, entered by John Alroy on 15.05.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

• this is not the same as Mission
Mammalia
 Ungulata - Merycoidodontidae
"Merychyus medius" = Ustatochoerus medius
"Merychyus medius" = Ustatochoerus medius Leidy 1858 oreodont