Where: Wyoming (44.8° N, 108.9° W: paleocoordinates 49.4° N, 92.2° W)
When: Willwood Formation, Early/Lower Eocene (55.8 - 48.6 Ma)
• Wa-M faunal zone
Environment/lithology: fluvial; lithified siliciclastic sediments
Reposited in the UMMP
Primary reference: P. D. Gingerich and T. Smith. 2006. Paleocene-Eocene land mammals from three new latest Clarkforkian and earliest Wasatchian wash sites at Polecat Bench in the northern Bighorn Basin, Wyoming. Contributions from the Museum of Paleontology, University of Michigan 31(11):245-303 [C. Beard/C. Beard]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 80580: authorized by K. Christopher Beard, entered by K. Christopher Beard on 28.04.2008
Creative Commons license: CC BY (attribution)
Taxonomic list
| unclassified | |
| Mammalia | |
"Peratherium innominatum" = Herpetotherium innominatum
"Peratherium innominatum" = Herpetotherium innominatum Simpson 1928 marsupial | |
|
Mimoperadectes labrus Bown and Rose 1979 marsupial
Peradectes protinnominatus McKenna 1960 marsupial | |
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Amphigyion straitae Gingerich and Smith 2006 eutherian | |
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Macrocranion cf. junnei Smith et al. 2002 elephant shrew | |
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Haplomylus zalmouti Gingerich and Smith 2006 elephant shrew | |
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Meniscotherium priscum Granger 1915 condylarth | |
"Viverravus bowni" = Viverravus laytoni, Didymictis leptomylus
"Viverravus bowni" = Viverravus laytoni Gingerich and Winkler 1985 placental
Didymictis leptomylus Cope 1880 placental | |
|
Leptacodon sp. Matthew and Granger 1921 placental | |
"Paramys annectens" = Acritoparamys atwateri, Microparamys hunterae
"Paramys annectens" = Acritoparamys atwateri Loomis 1907 rodent
Microparamys hunterae Ivy 1990 rodent | |
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Tuscahomys sp. Dawson and Beard 2007 rodent cf. Reithroparamys, new species according to Gingerich and Smith
| |
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Phenacolemur praecox Matthew 1915 primate | |
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Niptomomys doreenae McKenna 1960 primate | |
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Ectypodus sp. Matthew and Granger 1921 multituberculate | |