Elk Creek (370 m): Wasatchian, Wyoming
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Mammalia
- Rodentia
- Ischyromyidae
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Paramys cf. copei
Loomis 1907
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Paramys cf. excavatus
Loomis 1907
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Mammalia
- Rodentia
- Sciuravidae
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cf. Knightomys depressus
(Loomis 1907)
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Dawsonomys minor
Wood 1965
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= cf. Knightomys minor
Wood 1965
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Alroy 2002 | |||||||||
Mammalia
- Primates
- Microsyopidae
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Microsyops sp.
Leidy 1872
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= Microsyopidae indet.
Osborn and Wortman 1892
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Alroy 2002 | |||||||||
Mammalia
- Primates
- Notharctidae
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Pelycodus sp.
Cope 1875
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= Cantius sp.
Simons 1962
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Alroy 2002 | |||||||||
"mckennai/trigonodus" | ||||||||||
Mammalia
- Primates
- Paromomyidae
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Phenacolemur praecox
Matthew 1915
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= Phenacolemurinae indet.
Simpson 1955
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Alroy 2002 | |||||||||
Mammalia
- Primates
- Omomyidae
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Tetonius homunculus
(Cope 1882)
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= Pseudotetonius ambiguus
Matthew 1915
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Bown and Rose 1987 | |||||||||
USGS D-1635, Y-142, 277, 334 | ||||||||||
Mammalia
- Dermoptera
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Plagiomene multicuspis
Matthew 1918
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Mammalia
- Perissodactyla
- Equidae
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Hyracotherium aemulor
Gingerich 1991
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recombined as Arenahippus aemulor | ||||||||||
"H. sp. 2" | ||||||||||
Hyracotherium grangeri
Gingerich 1989
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recombined as Sifrhippus grangeri | ||||||||||
"H. sp. 1" | ||||||||||
Mammalia
- Phenacodontidae
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Ectocion osbornianus
(Cope 1882)
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Phenacodus primaevus
(Cope 1873)
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= Phenacodus sp.
Cope 1873
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Alroy 2002 | |||||||||
Mammalia
- Diacodexeidae
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Diacodexis metsiacus
(Cope 1882)
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= Diacodexis sp.
Cope 1882
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Alroy 2002 | |||||||||
Bunophorus etsagicus
(Cope 1882)
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= Bunophorus sp.
Sinclair 1914
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Alroy 2002 | |||||||||
Mammalia
- Procreodi
- Arctocyonidae
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Thryptacodon antiquus
Matthew and Granger 1915
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Mammalia
- Creodonta
- Oxyaenidae
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Oxyaena sp.
Cope 1874
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"intermedia/forcipata" | ||||||||||
Mammalia
- Creodonta
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Prolimnocyon atavus
Matthew and Granger 1915
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at USGS D-1422: Gebo and Rose 1993 | ||||||||||
Mammalia
- Creodonta
- Hyaenodontidae
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Tritemnodon sp.
Matthew 1906
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"1" | ||||||||||
Tritemnodon strenua
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= Tritemnodon strenuus
Cope 1875
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Alroy 2002 | |||||||||
Prototomus sp.
Cope 1874
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"1" | ||||||||||
Mammalia
- Viverravidae
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Didymictis sp.
Cope 1875
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"curtidens/lysitensis" | ||||||||||
Mammalia
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Vulpavus australis
Matthew and Granger 1915
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Mammalia
- Acreodi
- Mesonychidae
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Pachyaena ossifraga
Cope 1874
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Mammalia
- Condylarthra
- Hyopsodontidae
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Hyopsodus sp.
Leidy 1870
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"latidens/miticulus" | ||||||||||
Mammalia
- Macroscelidea
- Apheliscidae
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Apheliscus sp.
Cope 1875
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"wapitiensis/insidiosus" | ||||||||||
Haplomylus scottianus
Gingerich 1994
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Gingerich 1994 | |||||||||
YM-319; presumably includes "H. speirianus" | ||||||||||
Mammalia
- Pantolestidae
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Palaeosinopa veterrima
Matthew 1901
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Mammalia
- Coryphodontidae
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Coryphodon sp.
(Owen 1845)
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original and current combination Lophiodon (Coryphodon) | ||||||||||
"2" | ||||||||||
Mammalia
- Esthonychidae
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Esthonyx bisulcatus
Cope 1874
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Reptilia
- Testudines
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Planetochelys dithyros
Hutchison 2013
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Hutchison 2013 | |||||||||
at UCMP V80012 (=Yale 280) | ||||||||||
see common names |
Geography
Country: | United States | State/province: | Wyoming | County: | Big Horn |
Coordinates: | 44.5° North, 108.0° West (view map) | ||||
Paleocoordinates: | 49.2° North, 90.8° West | ||||
Basis of coordinate: | based on political unit | ||||
Geographic resolution: | small collection |
Time
Period: | Paleogene | Epoch: | Eocene |
Stage: | Ypresian | 10 m.y. bin: | Cenozoic 2 |
*Period: | Tertiary | ||
Key time interval: | Wasatchian | ||
Age range of interval: | 55.80000 - 50.30000 m.y. ago | ||
* legacy (obsolete) database fields |
Lithology and environment
Environment: | terrestrial indet. |
Taphonomy
Modes of preservation: | body |
Collection methods and comments
Reason for describing collection: | biostratigraphic analysis |
Taxonomic list comments:USGS D-1422 is from Washakie County |
Metadata
Also known as: | YPM 82a, 277, 280, 282, 283, 298, 299, 419, 142, 334, 360, USGS D-1422, D-1635 | ||
Database number: | 15532 | ||
Authorizer: | J. Alroy, P. Holroyd | Enterer: | J. Alroy, P. Holroyd | Research group: | vertebrate |
Created: | 1993-02-18 00:00:00 | Last modified: | 2002-06-03 03:27:40 |
Access level: | the public | Released: | 1993-02-18 00:00:00 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
3021. | 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] |
Secondary references:
6294 | J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals. [J. Alroy/J. Alroy/M. Kouvari] | |
1123 | T. M. Bown and K. D. Rose. 1987. Patterns of Dental Evolution in Early Eocene Anaptomorphine Primates (Omomyidae) from the Bighorn Basin, Wyoming. Paleontological Society Memoir 23:1-162 [J. Alroy/J. Alroy/J. Ju] | |
1662 | P. D. Gingerich. 1994. New species of Apheliscus, Haplomylus, and Hyopsodus (Mammalia, Condylarthra) from the late Paleocene of southern Montana and early Eocene of northwestern Wyoming. Contributions from the Museum of Paleontology, University of Michigan 29(6):119-134 [J. Alroy/J. Alroy/K. Beard] | |
55096 | J. H. Hutchison. 2013. New turtles from the Paleogene of North America. In D. B. Brinkman, P. A. Holroyd, J. D. Gardner (eds.), Morphology and Evolution of Turtles 477-497 [P. Holroyd/P. Holroyd] |