West Side of Shotgun Butte (Paleocene of the United States)

Where: Fremont County, Wyoming (43.2° N, 108.2° W: paleocoordinates 48.5° N, 89.8° W)

• coordinate based on political unit

When: Shotgun Member (Fort Union Formation), Clarkforkian (56.8 - 55.8 Ma)

Environment/lithology: terrestrial

Primary reference: C. L. Gazin. 1971. Paleocene primates from the Shotgun Member of the Fort Union Formation in the Wind River Basin, Wyoming. Proceedings of the Biological Society of Washington 84(3):13-38 [J. Alroy/J. Alroy/M. Carrano]more details

PaleoDB collection 15218: authorized by John Alroy, entered by John Alroy on 18.02.1993

Creative Commons license: CC BY (attribution)

Taxonomic list

• "near the top of the member"
Mammalia
 Theriamorpha - Phenacodontidae
Phenacodus sp. Cope 1873 condylarth
Ectocion osbornianus Cope 1882 condylarth
 Primates - Plesiadapidae
Plesiadapis cf. cookei Jepsen 1930 primate