Where: Wyoming (44.6° N, 108.5° W: paleocoordinates 49.4° N, 91.2° W)
• coordinate estimated from map
• small collection-level geographic resolution
When: Willwood Formation, Wasatchian (55.8 - 50.3 Ma)
• Wa-2
• 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 46644: authorized by Will Clyde, entered by Will Clyde on 24.01.2005
Creative Commons license: CC BY (attribution)
Taxonomic list
Mammalia | |
Neoliotomus ultimus Granger and Simpson 1928 multituberculate | |
Acritoparamys atwateri Loomis 1907 rodent | |
"Haplomylus speirianus" = Microsyops speirianus
"Haplomylus speirianus" = Microsyops speirianus Cope 1880 primate | |
Cantius mckennai Gingerich and Simons 1977 primate | |
"Hyracotherium grangeri" = Sifrhippus grangeri
"Hyracotherium grangeri" = Sifrhippus grangeri Gingerich 1989 horse | |
Ectocion osbornianus Cope 1882 condylarth
Phenacodus intermedius Granger 1915 condylarth | |
Diacodexis metsiacus Cope 1882 even-toed ungulate | |
Didymictis protenus Cope 1874 placental
Viverravus acutus Matthew and Granger 1915 placental | |
Hyopsodus pauxillus Gingerich 1994 condylarth
Hyopsodus loomisi McKenna 1960 condylarth | |
Palaeosinopa incerta Bown and Schankler 1982 eutherian | |
Coryphodon eocaenus Owen 1846 pantodont | |
Reptilia | |
Xestops sp. Cope 1873 squamates | |
Allognathosuchus sp. Mook 1921 crocodilian |