Also known as YPM 87, 88, 98, 101, 144, 215W, 345, 377, 388, 408; USGS D-1224 (=UW V-73125), 1225
Where: Big Horn County, Wyoming (44.5° N, 108.0° W: paleocoordinates 49.2° N, 90.8° W)
• coordinate based on political unit
When: Willwood Formation, Wasatchian (55.8 - 50.3 Ma)
Environment/lithology: terrestrial
Primary reference: D. M. Schankler. 1980. Faunal Zonation of the Willwood Formation in the Central Bighorn Basin, Wyoming. University of Michigan Papers on Paleontology 24:99-114 [J. Alroy/J. Alroy/M. Uhen]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 15514: authorized by John Alroy, entered by John Alroy on 18.02.1993, edited by Patricia Holroyd and Jonathan Marcot
Creative Commons license: CC BY (attribution)
Taxonomic list
note: Y-215W originally placed at 190 m, placed at 180 m by Bown and Rose (1987)
Mammalia | |
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Esthonyx spatularius Cope 1880 tillodont | |
Prodiacodon tauricinerei Jepsen 1930 eutherian | |
cf. Knightomys depressus Loomis 1907 rodent | |
Paramys cf. excavatus Loomis 1907 rodent | |
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Uintacyon massetericus Cope 1882 placental | |
Didymictis leptomylus Cope 1880 placental | |
Pachyaena ossifraga Cope 1874 condylarth | |
Thryptacodon antiquus Matthew and Granger 1915 condylarth | |
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"Arenahippus grangeri" = Sifrhippus grangeri5
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Ectocion osbornianus Cope 1882 condylarth
Phenacodus vortmani Cope 1880 condylarth
Phenacodus intermedius Granger 1915 condylarth | |
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Haplomylus speirianus Cope 1880 elephant shrew | |
Macrocranion nitens Matthew 1918 elephant shrew | |
Reptilia | |
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