Powder River 52-12/13/14/15 (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

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

Environment/lithology: terrestrial

Primary reference: E. Delson. 1971. Fossil mammals of the early Wasatchian Powder River local fauna, Eocene of northeast. Bulletin of the American Museum of Natural History 146(4) [J. Alroy/J. Alroy/M. Uhen]more details

PaleoDB collection 16028: authorized by John Alroy, entered by John Alroy on 18.02.1993

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Mammalia
 Insectivora -
Insectivora indet.
Insectivora indet. Bowdich 1821 insectivoran
 Condylarthra - Hyopsodontidae
Hyopsodus sp.
Hyopsodus sp. Leidy 1870 condylarth
 Rodentia - Ischyromyidae
Paramys sp.
Paramys sp. Leidy 1871 rodent
large
 Procreodi - Arctocyonidae
"Chriacus" gallinae
"Chriacus" gallinae Matthew and Granger 1915 condylarth
 Perissodactyla - Palaeotheriidae
Hyracotherium sp.
Hyracotherium sp. Owen 1841 odd-toed ungulate
 Macroscelidea - Apheliscidae
Haplomylus speirianus
Haplomylus speirianus Cope 1880 elephant shrew
 Cimolesta - Coryphodontidae
Coryphodon sp.
Coryphodon sp. Owen 1845 pantodont