Where: Wyoming (44.4° N, 108.7° W: paleocoordinates 49.2° N, 91.6° W)
• coordinate estimated from map
• small collection-level geographic resolution
When: Willwood Formation, Wasatchian (55.8 - 50.3 Ma)
• Wa-6
• group of beds-level stratigraphic resolution
Environment/lithology: fluvial-lacustrine; lithified siliciclastic sediments
Size classes: macrofossils, mesofossils
Reposited in the UMMP
Collection methods: surface (float), surface (in situ),
Primary reference: W. C. Clyde. 1997. Stratigraphy and mammalian paleontology of the McCullough Peaks, northern Bighorn Basin, Wyoming: Implications for biochronology, basin development, and community reorganization across the Paleocene-Eocene boundary. PhD Thesis, University of Michigan [W. Clyde/W. Clyde/J. Alroy]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 46826: authorized by Will Clyde, entered by Will Clyde on 24.01.2005
Creative Commons license: CC BY (attribution)
Taxonomic list
Mammalia | |
Hyopsodus minor Loomis 1905 condylarth
Hyopsodus lysitensis Gingerich 1974 condylarth | |
"Hyracotherium cristatum" = Systemodon tapirinus
"Hyracotherium cristatum" = Systemodon tapirinus Cope 1875 odd-toed ungulate | |
"Hyracotherium pernix" = Arenahippus pernix
"Hyracotherium pernix" = Arenahippus pernix Marsh 1876 horse | |
Diacodexis metsiacus Cope 1882 even-toed ungulate | |
Prototomus secundarius Cope 1875 creodont | |
Paramys v. large sp. Leidy 1871 rodent | |
Cantius abditus Gingerich and Simons 1977 primate | |
Esthonyx bisulcatus Cope 1874 tillodont |