SC-273 (Paleocene of the United States)

Where: Park County, Wyoming (44.9° N, 109.1° W: paleocoordinates 50.8° N, 88.6° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Fort Union Formation, Tiffanian (61.7 - 56.8 Ma)

• "late Tiffanian"

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Reposited in the UMMP

Primary reference: B. G. Naylor and D. W. Krause. 1981. Piceoerpeton, a giant early Tertiary salamander from western North America. Journal of Paleontology 55(3):507-523 [J. Alroy/J. Alroy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 85096: authorized by John Alroy, entered by John Alroy on 26.11.2008, edited by Patricia Holroyd

Creative Commons license: CC BY (attribution)

Taxonomic list

Mammalia
 Theriamorpha - Leptictidae
Prodiacodon cf. tauricinerei Jepsen 1930 eutherian
 Theriamorpha - Stylinodontidae
Ectoganus cf. lobdelli Simpson 1929 taeniodont
 Theriamorpha - Phenacodontidae
Ectocion mediotuber Thewissen 1990 condylarth
Phenacodus vortmani Cope 1880 condylarth
 Procreodi - Arctocyonidae
Arctocyon cf. nexus Gazin 1956 condylarth
 Theriamorpha - Viverravidae
Viverravus laytoni Gingerich and Winkler 1985 placental
 Primates - Plesiadapidae
Plesiadapis fodinatus Jepsen 1930 primate
Plesiadapis churchilli Gingerich 1975 primate
Chiromyoides cf. caesor Gingerich 1973 primate
Amphibia
 Caudata - Urodela
Piceoerpeton willwoodense Meszoely 1967 salamander