Where: Hot Springs/Washakie County, Wyoming (43.9° N, 108.3° W: paleocoordinates 49.6° N, 88.2° W)
• coordinate based on political unit
• small collection-level geographic resolution
When: Fort Union Formation, Tiffanian (61.7 - 56.8 Ma)
• Earlier literature referred to this as the 'Polecat Bench Formation'
Environment/lithology: terrestrial; lithology not reported
Size classes: macrofossils, mesofossils
Reposited in the UW
Primary reference: J. E. Hartman. 1986. Paleontology and biostratigraphy of lower part of Polecat Bench Formation, southern Bighorn Basin, Wyoming. Contributions to Geology, University of Wyoming 24(1):11-63 [J. Alroy/M. Sommers]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 15013: authorized by John Alroy, entered by John Alroy on 30.04.1994
Creative Commons license: CC BY (attribution)
Taxonomic list
Mammalia | |
Promioclaenus acolytus Cope 1882 condylarth
Litaletes disjunctus Simpson 1935 condylarth | |
Prothryptacodon cf. hilli Rigby 1980 placental | |
Plesiadapis praecursor Gingerich 1975 primate | |
Acmeodon secans Matthew and Granger 1921 eutherian | |
Aphronorus cf. ratatoski Winterfeld 1982 eutherian | |
Ptilodus sp. Cope 1881 multituberculate | |
Anconodon cf. cochranensis Russell 1929 multituberculate |