Where: Big Horn County, Wyoming (44.5° N, 108.3° W: paleocoordinates 49.3° N, 91.1° W)
• coordinate estimated from map
• small collection-level geographic resolution
When: Willwood Formation, Wasatchian (55.8 - 50.3 Ma)
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 15594: authorized by John Alroy, entered by John Alroy on 27.09.1993, edited by Leah Gannon
Creative Commons license: CC BY (attribution)
Taxonomic list
Reptilia | |
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Mammalia | |
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"Homogalax planeticus" = Cardiolophus radinskyi1
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"Hyracotherium grangeri" = Sifrhippus grangeri1
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Prolimnocyon atavus Matthew and Granger 1915 creodont | |
Arfia shoshoniensis, Prototomus martis n. sp.
Arfia shoshoniensis Matthew and Granger 1915 creodont
Prototomus martis n. sp. Gingerich and Deutsch 1989 creodont |