USGS D-1055 (Eocene of the United States)

Where: Hot Springs County, Wyoming (43.7° N, 108.7° W: paleocoordinates 47.5° N, 94.4° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Aycross Formation, Bridgerian (50.3 - 46.2 Ma)

Environment/lithology: terrestrial

Reposited in the USGS

Primary reference: T. M. Bown. 1982. Geology, Paleontology, and Correlation of Eocene Volcaniclastic Rocks, Southeast Absaroka Range, Hot Springs County, Wyoming. United States Geological Survey Professional Paper 1201-A:A1-A75 [J. Alroy/J. Alroy/J. Marcot]more details

PaleoDB collection 16489: authorized by John Alroy, entered by John Alroy on 18.02.1993

Creative Commons license: CC BY (attribution)

Taxonomic list

Mammalia
 Rodentia - Ischyromyidae
Pseudotomus robustus Marsh 1872 rodent
 Perissodactyla - Brontotheriidae
cf. Palaeosyops fontinalis Cope 1873 brontothere
 Perissodactyla - Equidae
Orohippus sp. Marsh 1872 horse