Where: Big Horn County, Wyoming (44.5° N, 108.4° W: paleocoordinates 49.3° N, 91.2° 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 15593: 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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Arfia opisthotoma Matthew 1901 creodont | |
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