West of Elk Mountain: Wasatchian, Wyoming

List of taxa
Where & when
Taphonomy & methods
Metadata & references
Taxonomic list
Mammalia - Primates - Notharctidae
Pelycodus cf. trigonodus Matthew 1915
    = Cantius cf. frugivorus Cope 1875
Alroy 2002
Mammalia - Coryphodontidae
Coryphodon radians (Cope 1872)
said to be "C. anthracoideus" by Lucas 1998b
Coryphodon molestus (Cope 1874)
    = Coryphodon armatus Cope 1872
Lucas 1998
Mammalia - Rodentia - Ischyromyidae
Paramys excavatus Loomis 1907
Mammalia - Perissodactyla - Palaeotheriidae
Hyracotherium cf. angustidens (Cope 1875)
    = Hyracotherium sp. Owen 1841
Alroy 2002
Mammalia - Viverravidae
Didymictis protenus (Cope 1874)
    = Didymictis sp. Cope 1875
Alroy 2002
Vassacyon cf. promicrodon (Wortman and Matthew 1899)
Mammalia - Macroscelidea - Apheliscidae
Haplomylus speirianus (Cope 1880)
Mammalia - Trogontia - Esthonychidae
Esthonyx cf. bisulcatus Cope 1874
    = Esthonyx spatularius Cope 1880
Gingerich and Gunnell 1979
Mammalia - Ungulata - Hyopsodontidae
Hyopsodus cf. miticulus (Cope 1874)
    = Hyopsodus sp. Leidy 1870
Alroy 2002
Mammalia - Ungulata - Diacodexeidae
Diacodexis cf. metsiacus (Cope 1882)
    = Diacodexis sp. Cope 1882
Alroy 2002
Mammalia - Ungulata - Phenacodontidae
Meniscotherium sp. Cope 1874
    = Meniscotherium chamense Cope 1874
Williamson and Lucas 1992
Phenacodus cf. vortmani (Cope 1880)
Mammalia - Acreodi - Mesonychidae
Pachyaena gracilis Matthew and Granger 1915
Mammalia - Hyaenodonta - Hyaenodontidae
Sinopa cf. multicuspis (Cope 1875)
    = Prototomus cf. secundarius Cope 1875
Alroy 2002
Sinopa cf. strenua (Cope 1875)
    = Tritemnodon cf. strenuus Cope 1875
Alroy 2002
see common names

Country:United States State/province:Wyoming County:Lincoln
Coordinates: 41.8° North, 110.7° West (view map)
Paleocoordinates:46.9° North, 94.4° West
Basis of coordinate:based on political unit
Period:Paleogene Epoch:Eocene
Stage:Ypresian 10 m.y. bin:Cenozoic 2
Key time interval:Wasatchian
Age range of interval:55.80000 - 50.30000 m.y. ago
* legacy (obsolete) database fields
Formation:Wasatch Member:Main Body
Local section:Fossl Local bed:1
Local order:bottom to top
Lithology and environment
Environment:terrestrial indet.
Modes of preservation:body
Collection methods and comments
Taxonomic list comments:low in the local section and shown as beneath Fossil Butte in a figure
multiple localities along four miles of strike; southernmost is in sec 30 T 20N R 119W
Database number:15889
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:

1616. C. L. Gazin. 1962. A Further Study Of The Lower Eocene Mammalian Faunas Of Southwestern Wyoming. Smithsonian Miscellaneous Collections 144(1):1-98 [J. Alroy/J. Alroy/J. Marcot]

Secondary references:

6294 J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals. [J. Alroy/J. Alroy/M. Uhen]
1668 P. D. Gingerich and G. F. Gunnell. 1979. Systematics and Evolution of the Genus Esthonyx (Mammalia, Tillodontia) in the Early Eocene of North America. Contributions from the Museum of Paleontology, University of Michigan 25(7):125-153 [J. Alroy/J. Alroy/P. Mannion]
6280 S. G. Lucas. 1998. Fossil mammals and the Paleocene/Eocene series boundary in Europe, North America, and Asia. In M.-P. Aubry, S. G. Lucas and W. A. Berggren (eds.), Late Paleocene–Early Eocene Biotic and Climatic Events in the Marine and Terrestrial Records 451-500 [J. Alroy/J. Alroy/M. Uhen]
3647 T. E. Williamson and S. G. Lucas. 1992. Meniscotherium (Mammalia, "Condylarthra) from the Paleocene-Eocene of Western North America). New Mex Museum of Natural History Science Bulletin 1:1-75 [J. Alroy/J. Alroy/M. Uhen]