Huerfano XII (Eocene of the United States)

Where: Huerfano County, Colorado (37.8° N, 105.1° W: paleocoordinates 42.2° N, 89.4° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Huerfano Formation, Wasatchian (55.8 - 50.3 Ma)

Environment/lithology: terrestrial

Primary reference: T. M. Bown and A. J. Kihm. 1981. Xenicohippus, an Unusual New Hyracotheriine (Mammalia, Perissodactyla) from Lower Eocene Rocks of Wyoming, Colorado and New Mexico. Journal of Paleontology 55(1):257-260 [J. Alroy/J. Alroy/J. Marcot]more details

PaleoDB collection 15655: authorized by John Alroy, entered by John Alroy on 26.07.1994, edited by Jonathan Marcot

Creative Commons license: CC BY (attribution)

Taxonomic list

• said by Krishtalka et al. 1987 to be Lysitean
Mammalia
 Perissodactyla - Equidae
Xenicohippus osborni Bown and Kihm 1981 horse
Eohippus angustidens Cope 1875 horse