Where: Park County, Wyoming (44.6° 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)
• 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 15706: authorized by John Alroy, entered by John Alroy on 27.09.1993, edited by Leah Gannon and Will Clyde
Creative Commons license: CC BY (attribution)
Taxonomic list
Reptilia | |
Allognathosuchus sp. Mook 1921 crocodilian | |
Mammalia | |
Coryphodon sp. Owen 1845 pantodont | |
Esthonyx bisulcatus Cope 1874 tillodont | |
Hyopsodus simplex Loomis 1905 condylarth | |
Prototomus robustus Matthew and Granger 1915 creodont
Prototomus secundarius Cope 1875 creodont | |
"Hyracotherium pernix" = Arenahippus pernix
"Hyracotherium pernix" = Arenahippus pernix Marsh 1876 horse | |
Homogalax protapirinus, "Hyracotherium cristatum" = Systemodon tapirinus
Homogalax protapirinus Wortman 1896 odd-toed ungulate
"Hyracotherium cristatum" = Systemodon tapirinus Cope 1875 odd-toed ungulate | |
Paramys copei Loomis 1907 rodent |