Anderson Ranch (Eocene of the United States)

Also known as UCM 78054

Where: Rio Blanco County, Colorado (40.0° N, 107.9° W: paleocoordinates 44.8° N, 91.8° W)

• coordinate based on political unit

• small collection-level geographic resolution

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

• said to be early Wasatchian

Environment/lithology: terrestrial

Primary reference: A. J. Kihm. 1984. Early Eocene Mammalian Fauna of the Piceance Creek Basin. Northwestern Colorado. [J. Alroy/J. Alroy/M. Uhen]more details

PaleoDB collection 15220: authorized by John Alroy, entered by John Alroy on 27.09.1993

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Mammalia
 Theriamorpha - Leptictidae
Didelphodus absarokae
Didelphodus absarokae Cope 1881 eutherian
 Cimolesta - Coryphodontidae
Coryphodon sp.
Coryphodon sp. Owen 1845 pantodont
 Macroscelidea - Apheliscidae
Haplomylus speirianus
Haplomylus speirianus Cope 1880 elephant shrew
 Theriamorpha - Phenacodontidae
Phenacodus sp.1
Phenacodus sp.1 Cope 1873 condylarth
 Perissodactyla - Palaeotheriidae
Hyracotherium sp.
Hyracotherium sp. Owen 1841 odd-toed ungulate
"A" and "B"
 Perissodactyla -
Heptodon sp.
Heptodon sp. Cope 1882 odd-toed ungulate
small
 Artiodactyla - Dichobunidae
Dichobunidae indet.1
Dichobunidae indet.1 Gill 1872 even-toed ungulate
 Theriamorpha -
Miacis sp.1
Miacis sp.1 Cope 1872 placental
 Creodonta - Oxyaenidae
Oxyaena intermedia2
Oxyaena intermedia2 Denison 1938 creodont
 Rodentia - Sciuravidae
Sciuravidae indet.
Sciuravidae indet. Miller and Gidley 1918 rodent
1Alroy 2002; 2Gunnell and Gingerich 1991