Powder River (UCM 83229) (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 B. A. Williams. 1997. Species diversity, tooth size, and shape of Haplomylus (Condylarthra, Hyopsodontidae) from the Powder River Basin, northeastern Wyoming. Contributions to Geology, University of Wyoming 31(2):59-78 [J. Alroy/J. Alroy/P. Holroyd]more details

PaleoDB collection 16036: authorized by John Alroy, entered by John Alroy on 21.09.1998

Creative Commons license: CC BY (attribution)

Taxonomic list

• not shown on map or discussed by Robinson and Ivy 1994, but referred to again by Robinson and Williams 1997
Mammalia
 Primates - Paromomyidae
Simpsonlemur sp. Robinson and Ivy 1994 primate
form "C"
 Macroscelidea - Apheliscidae
Haplomylus bozemanensis Robinson and Williams 1997 elephant shrew