East of Tunnel Rock (Miocene of the United States)

Where: Keya Paha County, Nebraska (42.8° N, 99.7° W: paleocoordinates 43.3° N, 96.6° 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 18137: authorized by John Alroy, entered by John Alroy on 15.05.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

• across the county line from Rockford Quarry
Mammalia
 Ungulata - Merycoidodontidae
"Merychyus novomexicanus" = Ustatochoerus medius novomexicanus
"Merychyus novomexicanus" = Ustatochoerus medius novomexicanus Frick 1929 oreodont