Where: Big Horn County, Wyoming (44.6° N, 108.5° W: paleocoordinates 49.4° N, 91.3° W)
• coordinate estimated from map
• small collection-level geographic resolution
When: Willwood Formation, Wasatchian (55.8 - 50.3 Ma)
• 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: P. D. Gingerich and H. A. Deutsch. 1989. Systematics and Evolution of Early Eocene Hyaenodontidae (Mammalia, Creodonta) in the Clarks Fork Basin, Wyoming. Contributions from the Museum of Paleontology, University of Michigan 27(13):327-391 [J. Alroy/J. Alroy/J. Marcot]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 15588: authorized by John Alroy, entered by John Alroy on 27.09.1993, edited by Leah Gannon
Creative Commons license: CC BY (attribution)
Taxonomic list
Mammalia | |
Esthonyx spatularius Cope 1880 tillodont | |
Hyopsodus loomisi McKenna 1960 condylarth | |
Haplomylus speirianus Cope 1880 elephant shrew | |
Phenacodus vortmani Cope 1880 condylarth | |
"Hyracotherium grangeri" = Sifrhippus grangeri
"Hyracotherium grangeri" = Sifrhippus grangeri Gingerich 1989 horse | |
Thryptacodon antiquus Matthew and Granger 1915 condylarth | |
Diacodexis metsiacus Cope 1882 even-toed ungulate | |
Prototomus martis Gingerich and Deutsch 1989 creodont
Arfia shoshoniensis Matthew and Granger 1915 creodont | |
Cantius mckennai Gingerich and Simons 1977 primate |