Where: Wyoming (44.6° N, 108.8° W: paleocoordinates 49.4° N, 91.6° W)
• coordinate estimated from map
• small collection-level geographic resolution
When: Willwood Formation, Wasatchian (55.8 - 50.3 Ma)
• Wa-5
• 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 46765: authorized by Will Clyde, entered by Will Clyde on 24.01.2005
Creative Commons license: CC BY (attribution)
Taxonomic list
Mammalia | |
Esthonyx bisulcatus Cope 1874 tillodont | |
Coryphodon eocaenus Owen 1846 pantodont | |
Hyopsodus simplex Loomis 1905 condylarth | |
Palaeanodon sp. Matthew 1918 placental | |
Prolimnocyon atavus Matthew and Granger 1915 creodont | |
Didymictis protenus Cope 1874 placental | |
Miacis exiguus Matthew and Granger 1915 placental | |
"Hyracotherium pernix" = Arenahippus pernix
"Hyracotherium pernix" = Arenahippus pernix Marsh 1876 horse | |
Homogalax protapirinus Wortman 1896 odd-toed ungulate | |
"Diacodexis robustus" = Bunophorus robustus, Diacodexis metsiacus
"Diacodexis robustus" = Bunophorus robustus Sinclair 1914 even-toed ungulate
Diacodexis metsiacus Cope 1882 even-toed ungulate | |
Absarokius sp. Matthew 1915 tarsier | |
Cantius abditus Gingerich and Simons 1977 primate |