Elk Creek (600 m): Wasatchian, Wyoming

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Mammalia - Leptictidae
Palaeictops bicuspis (Cope 1880)
Mammalia - Esthonychidae
Esthonyx bisulcatus Cope 1874
Mammalia - Pantolestidae
Palaeosinopa veterrima Matthew 1901
Mammalia - Coryphodontidae
Coryphodon sp. (Owen 1845)
original and current combination Lophiodon (Coryphodon)
"2"
Mammalia
Ectoganus simplex (Cope 1874)
    = Ectoganus gliriformis Cope 1874
Alroy 2002
Mammalia - Condylarthra - Hyopsodontidae
Hyopsodus sp. Leidy 1870
"latidens/miticulus"
Hyopsodus sp. Leidy 1870
"loomisi/minor"
Hyopsodus powellianus Cope 1884
Mammalia - Creodonta - Oxyaenidae
Oxyaena sp. Cope 1874
"intermedia/forcipata"
Mammalia - Creodonta - Hyaenodontidae
Prototomus sp. Cope 1874
"1"
Tritemnodon strenua
    = Tritemnodon strenuus Cope 1875
Alroy 2002
Mammalia - Viverravidae
Viverravus sp. Marsh 1872
"V. acutus/gracilis"
Didymictis sp. Cope 1875
"curtidens/lysitensis"
Mammalia
Uintacyon asodes Gazin 1952
Miacis exiguus Matthew and Granger 1915
    = Miacis sp. Cope 1872
Alroy 2002
Vulpavus australis Matthew and Granger 1915
Mammalia - Acreodi - Hapalodectidae
Hapalodectes leptognathus (Osborn and Wortman 1892)
Mammalia - Phenacodontidae
Phenacodus primaevus (Cope 1873)
    = Phenacodus sp. Cope 1873
Alroy 2002
Phenacodus vortmani (Cope 1880)
Mammalia - Perissodactyla - Equidae
Hyracotherium cf. index (Cope 1873)
recombined as Minippus index
Hyracotherium grangeri Gingerich 1989
recombined as Sifrhippus grangeri
"H. sp. 1"
Hyracotherium pernix (Marsh 1876)
recombined as Arenahippus pernix
"H. sp. 3"
Mammalia - Perissodactyla
Heptodon posticus (Cope 1882)
Heptodon calciculus (Cope 1880)
Mammalia - Diacodexeidae
Bunophorus etsagicus (Cope 1882)
    = Bunophorus sp. Sinclair 1914
Alroy 2002
Diacodexis metsiacus (Cope 1882)
    = Diacodexis sp. Cope 1882
Alroy 2002
Mammalia - Rodentia - Ischyromyidae
Pseudotomus coloradensis Wood 1962
    = cf. Mytonomys coloradensis Wood 1962
Alroy 2002
Paramys cf. copei Loomis 1907
Paramys cf. excavatus Loomis 1907
Mammalia - Primates - Paromomyidae
Phenacolemurinae indet. Simpson 1955
"Phenacolemur sp. 2"
Mammalia - Primates - Omomyidae
Absarokius metoecus Bown and Rose 1987
Bown and Rose 1987
Y-18b
Absarokius abbotti (Loomis 1906)
OK, B & R 87: Y-18, USGS D-1625
Mammalia - Primates - Microsyopidae
Microsyops sp. Leidy 1872
    = Microsyopidae indet. Osborn and Wortman 1892
Alroy 2002
Mammalia - Primates - Notharctidae
Pelycodus abditus Gingerich and Simons 1977
    = Cantius abditus Gingerich and Simons 1977
Alroy 2002
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:600 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 18b, 19, 36, USGS D-1625 (595 m)
Database number:15556
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]