Also known as Big Multi Quarry; CM 2433; UCMP V-76134; ETE Locality 1563
Where: Sweetwater County, Wyoming (41.9° N, 108.6° W: paleocoordinates 47.2° N, 90.5° W)
• coordinate based on nearby landmark
• small collection-level geographic resolution
When: Fort Union Formation, Clarkforkian (56.2 - 54.9 Ma)
• "75-100 m below the base of the Wasatch Fm."
• group of beds-level stratigraphic resolution
Environment/lithology: "floodplain"; lithified, gray mudstone
Size class: macrofossils
Collection methods: quarrying, surface (float)
• ETE reference list: 980, 979, 978
Primary reference: K. D. Rose. 1981. The Clarkforkian Land-Mammal Age and Mammalian Faunal Composition Across the Paleocene-Eocene Boundary. University of Michigan Papers on Paleontology 26:1-197 [J. Alroy/J. Alroy/P. Mannion]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 15072: authorized by John Alroy, entered by John Alroy on 30.04.1994, edited by K. Christopher Beard, Patricia Holroyd and Philip Mannion
Creative Commons license: CC BY (attribution)
Taxonomic list
Amphibia | |
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Mammalia | |
Neoliotomus conventus8 Jepsen 1930 multituberculate according to Krause 1980, "only specimen of ? Neoliotomus sp., the 'Big Multi,' has been lost"
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Microcosmodon conus3 Jepsen 1930 multituberculate could be M. conus or M. rosei according to Krause 1980, but OK according to Wilf et al. 1998
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"Esthonyx xenicus" = Azygonyx xenicus4
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"Diacocherus minutus" = Adunator minutus8
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cf. Apheliscus nitidus Simpson 1937 elephant shrew | |
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Didymictis sp. Cope 1875 placental | |
Ectocion osbornianus Cope 1882 condylarth
Phenacodus intermedius8 Granger 1915 condylarth presumably includes "P. primaevus" and "P. vortmani"
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Nyctitheriidae indet.6, Ceutholestes acerbus n. sp.6, Wyonycteris chalix6, cf. Wyonycteris galensis6, Plagioctenoides cryptos n. sp.6, Plagioctenodon goliath n. sp.6, Plagioctenodon cf. rosei6, Plagioctenodon dawsonae n. sp.6, Limaconyssus habrus6
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"Lipotyphla indet." = Eulipotyphla8
"Lipotyphla indet." = Eulipotyphla8 placental said to be new and compared to Mckennatherium; conceivably the same as "cf. Cedrocherus sp." of Dawson and Beard 1996, said to be new
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Alagomys russelli n. sp.4
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Paramys adamus n. sp.4
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Carpolestes nigridens Simpson 1928 primate | |
Plesiadapis dubius Matthew 1915 primate apparently includes "P. cookei" based on Wilf et al. 1998; however, Dawson and Beard 1996 suggest that the latter is P. gingerichi
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Arctodontomys sp. Gunnell 1985 primate said to be new: Wilf et al. 1998; may include "Navajovius sp." of Gunnell 1989 = "microsyopid near Navajovius" and/or "Niptomomys sp."
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Phenacolemur cf. simonsi Bown and Rose 1976 primate | |
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