Elk Creek (570 m): Wasatchian, Wyoming

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Mammalia - Leptictidae
Palaeictops bicuspis (Cope 1880)
Mammalia - Rodentia - Ischyromyidae
Leptotomus loomisi Wood 1962
    = cf. Mytonomys coloradensis Wood 1962
Alroy 2002
Paramys cf. copei Loomis 1907
Paramys cf. excavatus Loomis 1907
Mammalia - Rodentia - Sciuravidae
Dawsonomys minor Wood 1965
    = cf. Knightomys minor Wood 1965
Alroy 2002
Mammalia - Primates - Microsyopidae
Microsyops sp. Leidy 1872
    = Microsyopidae indet. Osborn and Wortman 1892
Alroy 2002
Mammalia - Primates - Notharctidae
Cantius sp. Simons 1962
"Pelycodus" frugivorus and "Copelemur consortutus"; not clear if this represents Cantius frugivorus or C. nunienus, which are said to be a single lineage by Godinot 1998
Pelycodus abditus Gingerich and Simons 1977
    = Cantius abditus Gingerich and Simons 1977
Alroy 2002
Mammalia - Primates - Paromomyidae
Phenacolemurinae indet. Simpson 1955
"Phenacolemur sp. 2"
Mammalia - Primates - Omomyidae
Absarokius abbotti (Loomis 1906)
Bown and Rose 1987
Y-28, USGS D-1163, 1338, 1345, 1469
Absarokius metoecus Bown and Rose 1987
Bown and Rose 1987
Y-27, 28, 56, USGS D-1469
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 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
Didelphodus absarokae (Cope 1881)
Mammalia - Creodonta - Hyaenodontidae
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
Uintacyon asodes Gazin 1952
Vulpavus canavus (Cope 1881)
Vulpavus australis Matthew and Granger 1915
Mammalia - Acreodi - Hapalodectidae
Hapalodectes leptognathus (Osborn and Wortman 1892)
Mammalia - Condylarthra - Hyopsodontidae
Hyopsodus sp. Leidy 1870
"latidens/miticulus"
Hyopsodus sp. Leidy 1870
"loomisi/minor"
Mammalia - Macroscelidea - Apheliscidae
Apheliscus sp. Cope 1875
"1"
Mammalia - Coryphodontidae
Coryphodon sp. (Owen 1845)
original and current combination Lophiodon (Coryphodon)
"2"
Coryphodon sp. (Owen 1845)
original and current combination Lophiodon (Coryphodon)
"3"
Mammalia - Esthonychidae
Esthonyx bisulcatus Cope 1874
Reptilia - Testudines
Planetochelys dithyros Hutchison 2013
Hutchison 2013
at UCMP loc V80007 (=Yale 27)
Reptilia - Testudines - Kinosternoidea
Baltemys staurogastros Hutchison 1991
Hutchison 1991
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:570 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:USGS 1346 is listed twice, here with an asterisk and at 580 without
USGS D-1163 is from Washakie County
Metadata
Also known as:YPM 18a, 26a-d, 27, Pelycodus Loc., 28, 56, 59, 66, 70, 71b, 74, 317, USGS D-1469 (565 m), 1163, 1338, 1345
Database number:15553
Authorizer:J. Alroy, P. Holroyd Enterer:J. Alroy, P. Holroyd
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]
691 J. H. Hutchison. 1991. Early Kinosterninae (Reptilia: Testudines) and their phylogenetic significance. Journal of Vertebrate Paleontology 11(2):145-167 [J. Alroy/J. Alroy/J. Alroy]
55096 J. H. Hutchison. 2013. New turtles from the Paleogene of North America. In D. B. Brinkman, P. A. Holroyd, J. D. Gardner (eds.), Morphology and Evolution of Turtles 477-497 [P. Holroyd/P. Holroyd]