Powder River (UCM 83117) (Eocene of the United States)

Where: Johnson County, Wyoming (44.0° N, 106.6° W: paleocoordinates 48.5° N, 89.4° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Wasatchian (55.8 - 50.3 Ma)

Environment/lithology: terrestrial

Reposited in the UCM

Primary reference: P. Robinson and L. D. Ivy. 1994. Paromomyidae (?Dermoptera) from the Powder River Basin, Wyoming and a discussion of microevolution in closely related species. Contributions to Geology, University of Wyoming 30(1):91-116 [J. Alroy/J. Alroy/M. Uhen]more details

PaleoDB collection 16035: authorized by John Alroy, entered by John Alroy on 05.01.1995

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Mammalia
 Cimolesta - Coryphodontidae
Coryphodon sp.
Coryphodon sp. Owen 1845 pantodont
 Primates - Paromomyidae
Phenacolemur simonsi, Simpsonlemur sp.
Phenacolemur simonsi Bown and Rose 1976 primate
Simpsonlemur sp. Robinson and Ivy 1994 primate
form "B"
 Primates - Notharctidae
Cantius torresi
Cantius torresi Gingerich 1986 primate
 Primates - Microsyopidae
Niptomomys sp.
Niptomomys sp. McKenna 1960 primate