Elk Creek (610 m): Wasatchian, Wyoming

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Mammalia - Leptictidae
Palaeictops bicuspis (Cope 1880)
Mammalia
Ectoganus simplex (Cope 1874)
    = Ectoganus gliriformis Cope 1874
Alroy 2002
Mammalia - Coryphodontidae
Coryphodon sp. (Owen 1845)
original and current combination Lophiodon (Coryphodon)
"2"
Mammalia - Esthonychidae
Esthonyx acutidens Cope 1881
Esthonyx bisulcatus Cope 1874
Mammalia - Condylarthra - Hyopsodontidae
Hyopsodus sp. Leidy 1870
"latidens/miticulus"
Hyopsodus powellianus Cope 1884
Mammalia - Phenacodontidae
Phenacodus vortmani (Cope 1880)
Mammalia - Perissodactyla - Equidae
Hyracotherium pernix (Marsh 1876)
recombined as Arenahippus pernix
"H. sp. 3"
Hyracotherium grangeri Gingerich 1989
recombined as Sifrhippus grangeri
"H. sp. 1"
Hyracotherium cf. index (Cope 1873)
recombined as Minippus index
Mammalia - Perissodactyla
Heptodon calciculus (Cope 1880)
at YPM 175: Bown and Gingerich 1972
Mammalia - Diacodexeidae
Bunophorus etsagicus (Cope 1882)
    = Bunophorus sp. Sinclair 1914
Alroy 2002
"Bunophorus" macropternus (Cope 1882)
Diacodexis metsiacus (Cope 1882)
    = Diacodexis sp. Cope 1882
Alroy 2002
Diacodexis secans (Cope 1881)
this is probably correct, see Krishtalka and Stucky 1985
Mammalia - Viverravidae
Viverravus sp. Marsh 1872
"V. acutus/gracilis"
Didymictis sp. Cope 1875
"curtidens/lysitensis"
Mammalia
Oodectes herpestoides Wortman 1901
    = Oodectes sp. Wortman 1901
Alroy 2002
called into question by discussion of Heinrich 1997
Vulpavus canavus (Cope 1881)
Vulpavus australis Matthew and Granger 1915
Vassacyon promicrodon (Wortman and Matthew 1899)
Uintacyon asodes Gazin 1952
Miacis exiguus Matthew and Granger 1915
    = Miacis sp. Cope 1872
Alroy 2002
Mammalia - Metacheiromyidae
Palaeanodon ignavus Matthew 1918
Mammalia - Creodonta - Oxyaenidae
Oxyaena sp. Cope 1874
"intermedia/forcipata"
Mammalia - Creodonta - Hyaenodontidae
Prototomus sp. Cope 1874
"1"
Mammalia - Rodentia - Sciuravidae
Sciuravidae indet. Miller and Gidley 1918
"1"
cf. Knightomys depressus (Loomis 1907)
Mammalia - Rodentia - Ischyromyidae
Paramys cf. excavatus Loomis 1907
Paramys cf. copei Loomis 1907
Mammalia - Primates - Paromomyidae
Phenacolemurinae indet. Simpson 1955
"Phenacolemur sp. 1"
Mammalia - Primates - Omomyidae
Absarokius abbotti (Loomis 1906)
OK, B & R 87: Y-174, 175, 176, 185, USGS D-1567
Mammalia - Primates - Notharctidae
Pelycodus abditus Gingerich and Simons 1977
    = Cantius abditus Gingerich and Simons 1977
Alroy 2002
probably includes "Pelycodus jarrovii" of Bown and Gingerich 1972 from YPM 175
Copelemur consortutus Gingerich and Simons 1977
    = Cantius nunienus Cope 1881
Alroy 2002
Mammalia - Primates - Microsyopidae
Microsyops sp. Leidy 1872
    = Microsyopidae indet. Osborn and Wortman 1892
Alroy 2002
Niptomomys doreenae McKenna 1960
    = Niptomomys thelmae Gunnell and Gingerich 1981
Gunnell and Gingerich 1981
from YPM 175, see also Bown and Gingerich 1972
see common names

Geography
Country:United States State/province:Wyoming County:Washakie
Coordinates: 44.0° North, 108.0° West (view map)
Paleocoordinates:48.7° North, 90.9° 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:54.90000 - 50.50000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Willwood
Local section:ElkCr Local bed:610 m
Local order:bottom to top
Lithology and environment
Environment:terrestrial indet.
Taphonomy
Modes of preservation:body
Collection methods and comments
Collection size:171 specimens
Reason for describing collection:biostratigraphic analysis
Taxonomic list comments:YPM 185, 191 and USGS D-1567 are in Big Horn County, the others are in Washakie County
Metadata
Also known as:YPM 174, 175, 176, 185, 191, USGS D-1567
Database number:15557
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]
1744 G. F. Gunnell and P. D. Gingerich. 1981. A New Species of Niptomomys (Microsyopidae) from the Early Eocene of Wyoming. Folia Primatologica 36 [J. Alroy/J. Alroy/J. Ju]