Where: Wyoming (44.4° N, 108.6° W: paleocoordinates 49.2° 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 46820: authorized by Will Clyde, entered by Will Clyde on 24.01.2005
Creative Commons license: CC BY (attribution)
Taxonomic list
Mammalia | |
Palaeictops bicuspis Cope 1880 eutherian | |
Rodentia indet. Bowdich 1821 rodent | |
Niptomomys thelmae Gunnell and Gingerich 1981 primate
Microsyops angustidens Matthew 1915 primate | |
Cantius ? abditus Gingerich and Simons 1977 primate | |
Phenacolemur sp. Matthew 1915 primate | |
Homogalax protapirinus Wortman 1896 odd-toed ungulate | |
"Hyracotherium pernix" = Arenahippus pernix
"Hyracotherium pernix" = Arenahippus pernix Marsh 1876 horse | |
Phenacodus vortmani Cope 1880 condylarth | |
Diacodexis metsiacus Cope 1882 even-toed ungulate
Bunophorus etsagicus Cope 1882 even-toed ungulate | |
Oxyaena intermedia Denison 1938 creodont
Oxyaena forcipata Cope 1874 creodont | |
Prolimnocyon atavus Matthew and Granger 1915 creodont
Didelphodus absarokae Cope 1881 creodont | |
Didymictis protenus Cope 1874 placental | |
"Alocodontulum atopum" = Tubulodon atopum
"Alocodontulum atopum" = Tubulodon atopum Rose et al. 1978 placental | |
Hyopsodus simplex Loomis 1905 condylarth | |
Apheliscus insidiosus Cope 1874 elephant shrew | |
Coryphodon armatus Cope 1872 pantodont | |
Esthonyx bisulcatus Cope 1874 tillodont | |
Reptilia | |
Testudines indet. Batsch 1788 turtle |