Elk Creek (530 m) (Eocene of the United States)
Also known as YPM 126, 227, 227N, 228, 253, USGS D-1157, 1230
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 15548: authorized by John Alroy, entered by John Alroy on 18.02.1993
Creative Commons license: CC BY (attribution)
Taxonomic list
• USGS localities are in Washakie County
YPM 45, 45N, 227, and 227N were placed at this level by Schankler, but 45 was placed at 470 m, and 227 at 457 m, by Bown and Rose (1987); see next list for YPM 45
other lists possibly at this level, with Bown levels:
USGS D-1698, 1784 (455 m), 1699 (463 m), 1495 (464 m), 1676 (464 m)
Steinius vespertinus is at USGS D-1699: B & R 87
YPM 45, 45N, 227, and 227N were placed at this level by Schankler, but 45 was placed at 470 m, and 227 at 457 m, by Bown and Rose (1987); see next list for YPM 45
other lists possibly at this level, with Bown levels:
USGS D-1698, 1784 (455 m), 1699 (463 m), 1495 (464 m), 1676 (464 m)
Steinius vespertinus is at USGS D-1699: B & R 87
Show authors, comments, and common names
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Prodiacodon tauricinerei Jepsen 1930 eutherian
Didelphodus absarokae Cope 1881 eutherian
Palaeictops bicuspis Cope 1880 eutherian | |
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Labidolemur kayi3 Simpson 1929 eutherian "Apatemys chardini/bellulus" DUPLICATE REF 1645 or 1646 or 1647 or 1648 or 1649
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Esthonyx bisulcatus Cope 1874 tillodont | |
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Phenacodus vortmani Cope 1880 condylarth | |
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"Hyracotherium aemulor" = Arenahippus aemulor, "Hyracotherium grangeri" = Sifrhippus grangeri
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Heptodon calciculus Cope 1880 odd-toed ungulate | |
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Anacodon ursidens Cope 1882 condylarth | |
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cf. Hexacodus sp. Gazin 1952 even-toed ungulate | |
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Vulpavus canavus Cope 1881 placental
Vulpavus australis Matthew and Granger 1915 placental
Vassacyon promicrodon Wortman and Matthew 1899 placental
Uintacyon asodes Gazin 1952 placental | |
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Palaeanodon ignavus Matthew 1918 placental | |
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cf. Knightomys depressus Loomis 1907 rodent | |
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Paramys cf. excavatus Loomis 1907 rodent
Paramys cf. copei Loomis 1907 rodent | |
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Absarokius abbotti2 Loomis 1906 tarsier Y-227, 228, USGS D-1157, 1230 level questionable: USGS D-1495, 1698, 1699
Absarokius metoecus2 Bown and Rose 1987 tarsier USGS D-1230 level questionable: USGS D-1495, 1676, 1699
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