Where: Wyoming (44.7° N, 108.9° W: paleocoordinates 49.5° N, 91.7° W)
• coordinate estimated from map
• small collection-level geographic resolution
When: Willwood Formation, Wasatchian (55.8 - 50.3 Ma)
• Wa-3
• 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 46816: 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 | |
Dissacus praenuntius Matthew and Granger 1915 condylarth | |
Thryptacodon antiquus Matthew and Granger 1915 condylarth | |
Homogalax protapirinus Wortman 1896 odd-toed ungulate | |
"Hyracotherium aemulor" = Arenahippus aemulor
"Hyracotherium aemulor" = Arenahippus aemulor Gingerich 1991 horse | |
Phenacodus intermedius Granger 1915 condylarth | |
Rodentia indet. Bowdich 1821 rodent | |
Ignacius graybullianus Bown and Rose 1976 primate | |
| |
Hyopsodus loomisi McKenna 1960 condylarth | |
Haplomylus speirianus Cope 1880 elephant shrew
Apheliscus insidiosus Cope 1874 elephant shrew | |
Reptilia | |
"Crocodilia indet." = Crocodylia
"Crocodilia indet." = Crocodylia Owen 1842 crocodilian |