SC-53 (Paleogene of the United States)

Where: Park County, Wyoming (44.3° N, 109.0° W: paleocoordinates 49.7° N, 90.3° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Clarkforkian (56.2 - 54.9 Ma)

Environment/lithology: terrestrial

Reposited in the UMMP

Primary reference: K. D. Rose. 1981. The Clarkforkian Land-Mammal Age and Mammalian Faunal Composition Across the Paleocene-Eocene Boundary. University of Michigan Papers on Paleontology 26:1-197 [J. Alroy/J. Alroy/P. Mannion]more details

PaleoDB collection 15111: authorized by John Alroy, entered by John Alroy on 18.02.1993, edited by Will Clyde

Creative Commons license: CC BY (attribution)

Taxonomic list

• meter level said to be 1405 by Gunnell and Gingerich 1991, Bowen and Bloch 2002, but appears to be 1380 in Rose's fig. 3
Mammalia
 Cimolesta - Coryphodontidae
Coryphodon sp. Owen 1845 pantodont
 Macroscelidea - Apheliscidae
Haplomylus simpsoni Rose 1981 elephant shrew
 Theriamorpha - Phenacodontidae
Ectocion osbornianus Cope 1882 condylarth
Phenacodus intermedius4 Granger 1915 condylarth
 Theriamorpha - Viverravidae
Didymictis protenus Cope 1874 placental
 Creodonta - Oxyaenidae
Dipsalidictis aequidens3 Matthew and Granger 1915 creodont
 Primates - Plesiadapidae
Plesiadapis cookei Jepsen 1930 primate
 Primates - Carpolestidae
Carpolestes simpsoni2 Bloch and Gingerich 1998 primate
Reptilia
 Testudines - Emydidae
Emydidae "indet. A"1 Rafinesque 1815 turtle