R.C. Hills #5 (Eocene of the United States)

Where: Huerfano County, Colorado (37.8° N, 105.1° W: paleocoordinates 41.3° N, 91.8° W)

• coordinate based on political unit

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

Environment/lithology: terrestrial

Primary reference: P. Robinson. 1966. Fossil Mammalia of the Huerfano Formation, Eocene, of Colorado. Peabody Museum of Natural History Bulletin 21:1-95 [J. Alroy/J. Alroy/J. Marcot]more details

PaleoDB collection 16398: authorized by John Alroy, entered by John Alroy on 18.02.1993

Creative Commons license: CC BY (attribution)

Taxonomic list

• Gardnerbuttean - "upper faunal zone"
Mammalia
 Cimolesta - Esthonychidae
Trogosus grangeri Gazin 1953 tillodont
 Perissodactyla - Brontotheriidae
Palaeosyops fontinalis Cope 1873 brontothere
 Perissodactyla -
Helaletes cf. nanus Marsh 1871 odd-toed ungulate