Also known as YPM 82a, 277, 280, 282, 283, 298, 299, 419, 142, 334, 360, USGS D-1422, D-1635
Where: Big Horn County, Wyoming (44.5° N, 108.0° W: paleocoordinates 49.2° N, 90.8° W)
• coordinate based on political unit
• small collection-level geographic resolution
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 15532: authorized by John Alroy, entered by John Alroy on 18.02.1993, edited by Patricia Holroyd
Creative Commons license: CC BY (attribution)
Taxonomic list
Reptilia | |
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Mammalia | |
Esthonyx bisulcatus Cope 1874 tillodont | |
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Vulpavus australis Matthew and Granger 1915 placental | |
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Thryptacodon antiquus Matthew and Granger 1915 condylarth | |
"Hyracotherium aemulor" = Arenahippus aemulor, "Hyracotherium grangeri" = Sifrhippus grangeri
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Ectocion osbornianus Cope 1882 condylarth | |
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Pachyaena ossifraga Cope 1874 condylarth | |
Palaeosinopa veterrima Matthew 1901 placental | |
Paramys cf. excavatus Loomis 1907 rodent
Paramys cf. copei Loomis 1907 rodent | |
cf. Knightomys depressus Loomis 1907 rodent | |
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Plagiomene multicuspis Matthew 1918 colugo |