Elk Creek (230 m) (Eocene of the United States)

Also known as YPM 212, 300

Where: Big Horn County, Wyoming (44.5° N, 108.0° W: paleocoordinates 49.2° N, 90.8° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Willwood Formation, Wasatchian (55.8 - 50.3 Ma)

Environment/lithology: terrestrial

Primary reference: D. M. Schankler. 1980. Faunal Zonation of the Willwood Formation in the Central Bighorn Basin, Wyoming. University of Michigan Papers on Paleontology 24:99-114 [J. Alroy/J. Alroy/M. Uhen]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 15519: 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
 Macroscelidea - Apheliscidae
Haplomylus speirianus
Haplomylus speirianus Cope 1880 elephant shrew
 Condylarthra - Hyopsodontidae
Hyopsodus sp.
Hyopsodus sp. Leidy 1870 condylarth
"latidens/miticulus"
 Theriamorpha - Viverravidae
Didymictis sp., Didymictis leptomylus
Didymictis sp. Cope 1875 placental
"curtidens/lysitensis"
Didymictis leptomylus Cope 1880 placental
 Creodonta -
Prolimnocyon atavus
Prolimnocyon atavus Matthew and Granger 1915 creodont
 Artiodactyla - Diacodexeidae
Diacodexis sp.
Diacodexis sp. Cope 1882 even-toed ungulate
 Theriamorpha - Phenacodontidae
Phenacodus sp.
Phenacodus sp. Cope 1873 condylarth
 Theriamorpha - Pantolestoidae
Palaeosinopa veterrima
Palaeosinopa veterrima Matthew 1901 placental