Elk Creek (170 m): Wasatchian, Wyoming

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Mammalia - Rodentia - Ischyromyidae
Paramys cf. copei Loomis 1907
Mammalia - Primates - Microsyopidae
Haplomylus speirianus (Cope 1880)
recombined as Microsyops speirianus
Mammalia - Primates - Notharctidae
Pelycodus sp. Cope 1875
    = Cantius sp. Simons 1962
Alroy 2002
"mckennai/trigonodus"
Mammalia - Primates - Omomyidae
Tetonius matthewi Bown and Rose 1987
Bown and Rose 1987
Y-389
Mammalia - Perissodactyla - Equidae
Hyracotherium aemulor Gingerich 1991
recombined as Arenahippus aemulor
"H. sp. 2"
Mammalia - Diacodexeidae
Diacodexis metsiacus (Cope 1882)
    = Diacodexis sp. Cope 1882
Alroy 2002
Mammalia - Creodonta - Oxyaenidae
Gunnell and Gingerich 1991
at YM 389
Mammalia - Creodonta - Hyaenodontidae
Prototomus sp. Cope 1874
"1"
Arfia opisthotoma (Matthew 1901)
    = Arfia shoshoniensis Matthew and Granger 1915
Gingerich and Deutsch 1989
at YM 389
Mammalia - Viverravidae
Didymictis leptomylus Cope 1880
Mammalia
Miacis exiguus Matthew and Granger 1915
    = Miacis sp. Cope 1872
Alroy 2002
Mammalia - Metacheiromyidae
Palaeanodon ignavus Matthew 1918
Mammalia - Condylarthra - Hyopsodontidae
Hyopsodus sp. Leidy 1870
"loomisi/minor"
Mammalia - Coryphodontidae
Coryphodon sp. (Owen 1845)
original and current combination Lophiodon (Coryphodon)
"1"
Mammalia - Esthonychidae
Esthonyx spatularius Cope 1880
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
Stratigraphy
Formation:Willwood
Local section:ElkCr Local bed:170 m
Local order:bottom to top
Lithology and environment
Environment:terrestrial indet.
Taphonomy
Modes of preservation:body
Collection methods and comments
Reason for describing collection:biostratigraphic analysis
Metadata
Also known as:YPM 89, 91, 389
Database number:15513
Authorizer:J. Alroy Enterer:J. Alroy
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]
1666 P. D. Gingerich and H. A. Deutsch. 1989. Systematics and Evolution of Early Eocene Hyaenodontidae (Mammalia, Creodonta) in the Clarks Fork Basin, Wyoming. Contributions from the Museum of Paleontology, University of Michigan 27(13):327-391 [J. Alroy/J. Alroy/J. Marcot]
1745 G. F. Gunnell and P. D. Gingerich. 1991. Systematics and Evolution of Late Paleocene and Early Eocene Oxyaenidae (Mammalia, Creodonta) in the Clarks Fork Basin, Wyoming. Contributions from the Museum of Paleontology, University of Michigan 28(7):141-180 [J. Alroy/J. Alroy/J. Marcot]