UMMP SC-257 (Paleocene of the United States)

Where: Park County, Wyoming (44.9° N, 109.0° W: paleocoordinates 50.2° N, 90.1° W)

• coordinate stated in text

When: Cf-1? mammal zone, Fort Union Formation, Clarkforkian (56.8 - 55.8 Ma)

Environment/lithology: terrestrial; lithology not reported

Size classes: macrofossils, mesofossils

Reposited in the UMMP

Primary reference: R. Secord. 2008. The Tiffanian Land-Mammal Age (middle and late Paleocene) in the northern Bighorn Basin, Wyoming. University of Michigan Papers on Paleontology 35:1-192 [K. Beard/K. Beard]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 190431: authorized by Patricia Holroyd, entered by Patricia Holroyd on 07.12.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

 Cimolesta - Cyriacotheriidae
Cyriacotherium argyreum Rose and Krause 1982 pantodont
 Taeniodonta - Stylinodontidae
Ectoganus lobdelli Simpson 1929 taeniodont
 Tribosphenida - Arctocyonidae
Arctocyon cf. nexus Gazin 1956 condylarth
 Ungulata - Prodinoceratidae
Probathyopsis harrisorum Patterson 1939 uintathere
 Ungulata - Phenacodontidae
Ectocion osbornianus Cope 1882 condylarth
Phenacodus intermedius Granger 1915 condylarth
Phenacodus vortmani Cope 1880 condylarth