Elk Creek (560 m): Wasatchian, Wyoming

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Mammalia - Leptictidae
Palaeictops bicuspis (Cope 1880)
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 - Rodentia - Sciuravidae
cf. Knightomys depressus (Loomis 1907)
Mammalia - Primates - Microsyopidae
Microsyops sp. Leidy 1872
    = Microsyopidae indet. Osborn and Wortman 1892
Alroy 2002
Mammalia - Primates - Notharctidae
Pelycodus frugivorus Cope 1875
recombined as Cantius frugivorus
Pelycodus abditus Gingerich and Simons 1977
recombined as Cantius abditus
Mammalia - Primates - Paromomyidae
Phenacolemurinae indet. Simpson 1955
"Phenacolemur sp. 1" and "P. sp. 2"
Mammalia - Primates - Omomyidae
Absarokius abbotti (Loomis 1906)
Bown and Rose 1987
Y-34, 44, 318, USGS D-1229, 1603, 1604
Absarokius metoecus Bown and Rose 1987
Bown and Rose 1987
Y-61, USGS D-1602, 1603
Tetonius homunculus (Cope 1882)
    = Tetonius sp. Matthew 1915
Alroy 2002
Mammalia - Perissodactyla
Heptodon calciculus (Cope 1880)
Mammalia - Perissodactyla - Equidae
Hyracotherium aemulor Gingerich 1991
recombined as Arenahippus aemulor
"H. sp. 2"
Hyracotherium grangeri Gingerich 1989
recombined as Sifrhippus grangeri
"H. sp. 1"
Hyracotherium cf. index (Cope 1873)
recombined as Minippus index
Mammalia - Phenacodontidae
Phenacodus brachypternus Cope 1882
recombined as Copecion brachypternus
Phenacodus vortmani (Cope 1880)
Mammalia - Diacodexeidae
Diacodexis metsiacus (Cope 1882)
    = Diacodexis sp. Cope 1882
Alroy 2002
Bunophorus etsagicus (Cope 1882)
    = Bunophorus sp. Sinclair 1914
Alroy 2002
Mammalia - Procreodi - Arctocyonidae
Anacodon ursidens Cope 1882
Chriacus gallinae Matthew and Granger 1915
Mammalia - Creodonta - Oxyaenidae
Oxyaena sp. Cope 1874
"intermedia/forcipata"
Mammalia - Creodonta - Hyaenodontidae
Tritemnodon strenua
ref 6294: and "T. hians"
Prototomus sp. Cope 1874
"1"
Mammalia - Viverravidae
Didymictis sp. Cope 1875
"curtidens/lysitensis"
Viverravus sp. Marsh 1872
"V. acutus/gracilis"
Mammalia
Miacis exiguus Matthew and Granger 1915
    = Miacis sp. Cope 1872
Alroy 2002
Vassacyon promicrodon (Wortman and Matthew 1899)
Uintacyon asodes Gazin 1952
Vulpavus australis Matthew and Granger 1915
Mammalia - Condylarthra - Hyopsodontidae
Hyopsodus informal latidens/miticulus
"latidens/miticulus"
Hyopsodus informal loomisi/minor
"loomisi/minor"
Mammalia - Macroscelidea - Apheliscidae
Apheliscus sp. Cope 1875
"1"
Mammalia - Macroscelidea - Amphilemuridae
Macrocranion nitens (Matthew 1918)
Mammalia - Pantolestidae
Palaeosinopa veterrima Matthew 1901
Mammalia - Coryphodontidae
Coryphodon informal sp. 2 (Owen 1845)
original and current combination Lophiodon (Coryphodon)
"2"
Coryphodon informal sp. 3 (Owen 1845)
original and current combination Lophiodon (Coryphodon)
"3"
Mammalia - Esthonychidae
Esthonyx bisulcatus Cope 1874
Mammalia
Peradectes chesteri (Gazin 1952)
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:560 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
Taxonomic list comments:YPM 41, 42, 43, 72, USGS D-1229 are from Washakie County
most or all of these are probably at the 481 m level of Bown et al. 1994
USGS D-1602, 1603, 1604 are also at the 481/560 level: B & R 87
Metadata
Also known as:YPM 34, 41, 42, 43, 44, 61, 72, 99, 318, USGS D-1229
Database number:15551
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]