Also known as YPM 81, 132, 136 (359 m), 149, 150, 151, 278, 279, 281, 284, 356, USGS D-1340 (364 m), 1386 (362 m), 1387 (360 m), 1924 (357 m)
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 15531: 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 | |
Didelphodus absarokae Cope 1881 eutherian
Prodiacodon tauricinerei Jepsen 1930 eutherian | |
Esthonyx bisulcatus Cope 1874 tillodont | |
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Labidolemur kayi4 Simpson 1929 eutherian "Apatemys DUPLICATE REF 1645 or 1646 or 1647 or 1648 or 1649
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Haplomylus speirianus Cope 1880 elephant shrew | |
Palaeonictis occidentalis Osborn 1892 creodont | |
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Prolimnocyon atavus Matthew and Granger 1915 creodont | |
Vulpavus australis Matthew and Granger 1915 placental | |
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Thryptacodon antiquus Matthew and Granger 1915 condylarth | |
"Hyracotherium aemulor" = Arenahippus aemulor
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Ectocion osbornianus Cope 1882 condylarth | |
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Pachyaena gigantea Osborn and Wortman 1892 condylarth also listed by O'Leary and Rose 1995a as from YPM 149, 360 m level
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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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