MP-23: Early/Lower Eocene, Wyoming

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Actinopteri - Lepisosteiformes - Lepisosteidae
Lepisosteus sp. Agassiz 1843
Clyde 1997
Salientia
Anura indet. (Fischer von Waldheim 1813)
Clyde 1997
Reptilia - Testudines
Testudines indet. Batsch 1788
Clyde 1997
Reptilia - Alligatoridae
Allognathosuchus sp. Mook 1921
Clyde 1997
Reptilia - Squamata
Lacertilia indet. Owen 1842
Clyde 1997
Mammalia - Primates - Microsyopidae
Arctodontomys wilsoni (Szalay 1969)
Clyde 1997 1 specimen
Mammalia - Primates - Paromomyidae
Phenacolemur sp. Matthew 1915
Clyde 1997 2 specimens
Mammalia - Primates - Notharctidae
Cantius mckennai (Gingerich and Simons 1977)
Clyde 1997 10 specimens
Mammalia - Coryphodontidae
Coryphodon eocaenus Owen 1846
Clyde 1997 3 specimens
Mammalia - Rodentia
Rodentia indet.
Clyde 1997 1 specimen
Mammalia - Rodentia - Ischyromyidae
Paramys copei Loomis 1907
Clyde 1997 1 specimen
Mammalia - Perissodactyla
Homogalax protapirinus (Wortman 1896)
Clyde 1997 4 specimens
Cardiolophus radinskyi Gingerich 1991
Clyde 1997 3 specimens
Mammalia - Perissodactyla - Equidae
Hyracotherium aemulor Gingerich 1991
Clyde 1997 43 specimens
recombined as Arenahippus aemulor
Mammalia - Creodonta - Oxyaenidae
Gunnell and Gingerich 1991 1 specimen
Oxyaena intermedia Denison 1938
Clyde 1997 1 specimen
Mammalia - Viverravidae
Didymictis protenus (Cope 1874)
Polly 1997 2 specimens
Viverravus browni
Clyde 1997 1 specimen
Viverravus acutus Matthew and Granger 1915
Polly 1997 1 specimen
Mammalia
Vassacyon promicrodon (Wortman and Matthew 1899)
Clyde 1997 1 specimen
Mammalia - Carnivora - Miacidae
Miacis deutschi Gingerich 1983
Clyde 1997 1 specimen
Mammalia - Metacheiromyidae
Palaeanodon ignavus Matthew 1918
Clyde 1997 1 specimen
Mammalia - Macroscelidea - Apheliscidae
Haplomylus speirianus (Cope 1880)
Clyde 1997 20 specimens
Mammalia - Trogontia - Esthonychidae
Esthonyx bisulcatus Cope 1874
Clyde 1997 3 specimens
Mammalia - Arctocyonidae
Thryptacodon antiquus Matthew and Granger 1915
Clyde 1997 1 specimen
Mammalia - Ungulata - Hyopsodontidae
Hyopsodus loomisi McKenna 1960
Clyde 1997 28 specimens
Mammalia - Ungulata - Diacodexeidae
Diacodexis metsiacus (Cope 1882)
Clyde 1997 12 specimens
Mammalia - Ungulata - Phenacodontidae
Ectocion osbornianus (Cope 1882)
Clyde 1997 1 specimen
Phenacodus intermedius Granger 1915
Clyde 1997 4 specimens
Phenacodus vortmani (Cope 1880)
Clyde 1997 1 specimen
Mammalia - Insectivora
Insectivora indet. Bowdich 1821
Clyde 1997 1 specimen
Mammalia - Acreodi
Wyolestes apheles Gingerich 1981
Clyde 1997 1 specimen
Mammalia - Hyaenodonta - Hyaenodontidae
Prototomus martis Gingerich and Deutsch 1989
1 specimen
Arfia shoshoniensis (Matthew and Granger 1915)
1 specimen
see common names

Geography
Country:United States State/province:Wyoming County:Park
Coordinates: 44.6° North, 108.9° West (view map)
Paleocoordinates:49.3° 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:55.80000 - 48.60000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Willwood
Local section:Vocation Local bed:140
Local order:bottom to top
Regional section:Northwest Regional bed:140
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-3
Metadata
Database number:15683
Authorizer:J. Alroy, W. Clyde Enterer:J. Alroy, L. Gannon, W. Clyde
Modifier:L. Gannon Research group:vertebrate
Created:1993-09-27 00:00:00 Last modified:2004-11-30 15:09:18
Access level:the public Released:1993-09-27 00:00:00
Creative Commons license:CC BY
Reference information

Primary reference:

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]

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]
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]