Dome Butte (Eocene of the United States)

Where: Campbell County, Wyoming (43.9° N, 105.7° W: paleocoordinates 48.3° N, 88.5° W)

• coordinate based on political unit

When: "Wasatch" Formation, Wasatchian (55.8 - 50.3 Ma)

Environment/lithology: terrestrial

Primary reference: P. E. Soister. 1968. Stratigraphy of the Wind River Formation in south-central Wind River Basin, Wyoming. United States Geological Survey Professional Paper 594-A:A1-A50 [J. Alroy/J. Alroy/J. Ju]more details

PaleoDB collection 15931: authorized by John Alroy, entered by John Alroy on 18.02.1993

Creative Commons license: CC BY (attribution)

Taxonomic list

• Lostcabinian
i.d.s by Whitmore
this is NOT a part of the Powder River L.F.; level in Robinson and Ivy 1994 section unclear
Mammalia
 Cimolesta - Coryphodontidae
Coryphodon sp. Owen 1845 pantodont
 Theriamorpha - Phenacodontidae
Phenacodus sp. Cope 1873 condylarth
said by Thewissen 1990 to probably be either P. intermedius or P. trilobatus
 Placentalia -
Perissodactyla indet.2 Owen 1848 odd-toed ungulate
 Perissodactyla - Equidae
Equidae indet.1 Gray 1821 horse
 Perissodactyla -
Heptodon sp. Cope 1882 odd-toed ungulate
mentioned by Delson 1971: I assume this replaces "Homogalax sp.," which is not in Delson's list