Where: Wyoming (44.5° N, 108.7° W: paleocoordinates 49.4° N, 91.5° 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 46735: authorized by Will Clyde, entered by Will Clyde on 24.01.2005
Creative Commons license: CC BY (attribution)
Taxonomic list
Reptilia | |
"Crocodilia indet." = Crocodylia
"Crocodilia indet." = Crocodylia Owen 1842 crocodilian | |
Testudines indet. Batsch 1788 turtle | |
Mammalia | |
Esthonyx bisulcatus Cope 1874 tillodont | |
Coryphodon lobatus Cope 1877 pantodont | |
Insectivora indet. Bowdich 1821 insectivoran | |
Hyopsodus simplex Loomis 1905 condylarth | |
Rodentia indet. Bowdich 1821 rodent | |
Cantius abditus Gingerich and Simons 1977 primate | |
Phenacodus trilobatus Cope 1881 condylarth | |
Cardiolophus semihians Cope 1882 odd-toed ungulate
Homogalax protapirinus Wortman 1896 odd-toed ungulate | |
"Hyracotherium pernix" = Arenahippus pernix
"Hyracotherium pernix" = Arenahippus pernix Marsh 1876 horse | |
Diacodexis metsiacus Cope 1882 even-toed ungulate | |
Oxyaena intermedia Denison 1938 creodont |