Powder River (UCM 85276) (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 16042: authorized by John Alroy, entered by John Alroy on 21.09.1998, edited by Jonathan Marcot

Creative Commons license: CC BY (attribution)

Taxonomic list

Mammalia
 Primates - Microsyopidae
"Haplomylus speirianus" = Microsyops speirianus
"Haplomylus speirianus" = Microsyops speirianus Cope 1880 primate
 Perissodactyla - Equidae
"Arenahippus cf. grangeri" = Sifrhippus grangeri
"Arenahippus cf. grangeri" = Sifrhippus grangeri Gingerich 1989 horse
 Macroscelidea - Apheliscidae
Haplomylus bozemanensis Robinson and Williams 1997 elephant shrew