MP-6: Early/Lower Eocene, Wyoming

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Mammalia - Leptictidae
Palaeictops bicuspis (Cope 1880)
Clyde 1997 1 specimen
Mammalia - Coryphodontidae
Coryphodon lobatus Cope 1877
Clyde 1997 1 specimen
Coryphodon eocaenus Owen 1846
Clyde 1997 1 specimen
Mammalia - Esthonychidae
Esthonyx bisulcatus Cope 1874
Clyde 1997 2 specimens
Mammalia - Condylarthra - Hyopsodontidae
Hyopsodus powellianus Cope 1884
Clyde 1997 1 specimen
Hyopsodus lysitensis Gingerich 1974
Clyde 1997 85 specimens
Hyopsodus minor Loomis 1905
Clyde 1997 4 specimens
Mammalia - Insectivora
Insectivora indet. Bowdich 1821
Clyde 1997 1 specimen
Mammalia - Acreodi - Hapalodectidae
Hapalodectes leptognathus (Osborn and Wortman 1892)
1 specimen
Mammalia - Phenacodontidae
Phenacodus vortmani (Cope 1880)
Clyde 1997 3 specimens
Mammalia - Perissodactyla - Equidae
Hyracotherium pernix (Marsh 1876)
Clyde 1997 79 specimens
recombined as Arenahippus pernix
Mammalia - Perissodactyla
Homogalax protapirinus (Wortman 1896)
Clyde 1997 3 specimens
Heptodon calciculus (Cope 1880)
Clyde 1997 2 specimens
Hyracotherium cristatum Wortman 1896
Clyde 1997 3 specimens
synonym of Systemodon tapirinus
Cardiolophus semihians (Cope 1882)
Clyde 1997 1 specimen
Mammalia - Procreodi - Arctocyonidae
Chriacus gallinae Matthew and Granger 1915
Clyde 1997 1 specimen
Mammalia - Diacodexeidae
Bunophorus informal large sp.
Clyde 1997 1 specimen
Diacodexis metsiacus (Cope 1882)
Clyde 1997 11 specimens
Mammalia - Viverravidae
Didymictis protenus (Cope 1874)
Polly 1997 4 specimens
Mammalia
Vulpavus canavus (Cope 1881)
Clyde 1997 1 specimen
Vulpavus australis Matthew and Granger 1915
Clyde 1997 2 specimens
Miacis exiguus Matthew and Granger 1915
Clyde 1997 1 specimen
Miacis petilus Gingerich 1983
Clyde 1997 1 specimen
Mammalia - Metacheiromyidae
Palaeanodon sp. Matthew 1918
Clyde 1997 1 specimen
Mammalia - Creodonta - Oxyaenidae
Oxyaena forcipata Cope 1874
Gunnell and Gingerich 1991 2 specimens
Mammalia - Creodonta - Hyaenodontidae
Prototomus secundarius Cope 1875
Gingerich and Deutsch 1989 2 specimens
Mammalia - Rodentia
Rodentia indet. Bowdich 1821
Clyde 1997 4 specimens
Mammalia - Rodentia - Ischyromyidae
Paramys informal v. large sp.
Clyde 1997 1 specimen
Paramys taurus Korth 1984
Clyde 1997 1 specimen
Paramys copei Loomis 1907
Clyde 1997 1 specimen
Mammalia - Primates - Omomyidae
Absarokius abbotti (Loomis 1906)
Clyde 1997 2 specimens
Mammalia - Primates - Notharctidae
Copelemur feretutus Gingerich and Simons 1977
Clyde 1997 2 specimens
synonym of Cantius frugivorus
Cantius abditus (Gingerich and Simons 1977)
Clyde 1997 10 specimens
Mammalia - Primates - Microsyopidae
Microsyops latidens (Cope 1882)
Clyde 1997 8 specimens
Reptilia - Lacertilia
Lacertilia indet. Owen 1842
Clyde 1997
Reptilia - Testudines
Testudines indet. Batsch 1788
Clyde 1997
Actinopteri - Lepisosteiformes - Lepisosteidae
Lepisosteus sp. Agassiz 1843
Clyde 1997
see common names

Geography
Country:United States State/province:Wyoming County:Park
Coordinates: 44.6° North, 108.9° West (view map)
Paleocoordinates:49.2° North, 92.2° West
Basis of coordinate:estimated from map
Geographic resolution:small collection
Time
Period:Paleogene Epoch:Eocene
Stage:Ypresian 10 m.y. bin:Cenozoic 2
*Period:Tertiary
Key time interval:Early/Lower Eocene
Age range of interval:56.00000 - 47.80000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Willwood
Local section:Deer Creek Local bed:775
Local order:bottom to top
Regional section:Northwest Regional bed:775
Regional order:bottom to top
Stratigraphic resolution:group of beds
Lithology and environment
Primary lithology: lithified "siliciclastic"
Includes fossils?Y
Environment:fluvial-lacustrine indet. Tectonic setting:intermontane basin
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils,mesofossils
Preservation of anatomical detail:good
Associated major elements:some
Disassociated major elements:many
Temporal resolution:time-averaged
Spatial resolution:parautochthonous
Collection methods and comments
Collection excludes:some genera
Collection methods:surface (float),surface (in situ),survey of museum collection
Museum repositories:UMMP
Taxonomic list comments:may be in Big Horn County
Wa-6
Metadata
Database number:15680
Authorizer:J. Alroy, W. Clyde Enterer:J. Alroy, W. Clyde, L. Gannon
Modifier:L. Gannon Research group:vertebrate
Created:1993-09-27 00:00:00 Last modified:2004-11-30 14:54:15
Access level:the public Released:1993-09-27 00:00:00
Creative Commons license:CC BY
Reference information

Primary reference:
3801. X. Zhou and P. D. Gingerich. 1991. New Species of Hapalodectes (Mammalia, Mesonychia) from the Early Wasatchian, Early Eocene of Northwestern Wyoming. Contributions from the Museum of Paleontology, University of Michigan 28(9):215-220 [J. Alroy/J. Alroy/P. Mannion]

Secondary references:

11717 W. C. Clyde. 1997. Stratigraphy and mammalian paleontology of the McCullough Peaks, northern Bighorn Basin, Wyoming: Implications for biochronology, basin development, and community reorganization across the Paleocene-Eocene boundary. PhD Thesis, University of Michigan [W. Clyde/W. Clyde/J. Alroy]
1666 P. D. Gingerich and H. A. Deutsch. 1989. Systematics and Evolution of Early Eocene Hyaenodontidae (Mammalia, Creodonta) in the Clarks Fork Basin, Wyoming. Contributions from the Museum of Paleontology, University of Michigan 27(13):327-391 [J. Alroy/J. Alroy/J. Marcot]
1745 G. F. Gunnell and P. D. Gingerich. 1991. Systematics and Evolution of Late Paleocene and Early Eocene Oxyaenidae (Mammalia, Creodonta) in the Clarks Fork Basin, Wyoming. Contributions from the Museum of Paleontology, University of Michigan 28(7):141-180 [J. Alroy/J. Alroy/J. Marcot]
2787 P. D. Polly. 1997. Ancestry and Species Definition in Paleontology: A Stratocladistic Analysis of Paleocene-Eocene Viverravidae (Mammalia, Carnivora) from Wyoming. Contributions from the Museum of Paleontology, University of Michigan 30(1):1-53 [J. Alroy/J. Alroy/M. Uhen]