FG-42: Wasatchian, Wyoming

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Mammalia - Primates - Notharctidae
Cantius ralstoni (Matthew 1915)
Clyde 1997 1 specimen
Mammalia - Perissodactyla
Cardiolophus radinskyi Gingerich 1991
Clyde 1997 3 specimens
Mammalia - Perissodactyla - Equidae
Hyracotherium grangeri Gingerich 1989
Clyde 1997 16 specimens
recombined as Sifrhippus grangeri
Mammalia - Phenacodontidae
Ectocion osbornianus (Cope 1882)
Clyde 1997 1 specimen
Phenacodus vortmani (Cope 1880)
Clyde 1997 5 specimens
Phenacodus intermedius Granger 1915
Clyde 1997 1 specimen
Mammalia - Creodonta - Oxyaenidae
Palaeonictis occidentalis Osborn 1892
Gunnell and Gingerich 1991 1 specimen
Dipsalidictis transiens (Matthew and Granger 1915)
Clyde 1997 2 specimens
Mammalia - Creodonta - Hyaenodontidae
Prototomus phobos Gingerich and Deutsch 1989
1 specimen
1 specimen
Mammalia
Uintacyon rudis Rose 1981
Clyde 1997 1 specimen
Mammalia - Condylarthra - Hyopsodontidae
Hyopsodus loomisi McKenna 1960
Clyde 1997 1 specimen
Mammalia - Pantolestidae
Palaeosinopa incerta Bown and Schankler 1982
Clyde 1997 1 specimen
Mammalia - Coryphodontidae
Coryphodon eocaenus Owen 1846
Clyde 1997 11 specimens
Mammalia
Azygonyx sp. Gingerich 1989
Clyde 1997 1 specimen
Mammalia - Esthonychidae
Esthonyx spatularius Cope 1880
Clyde 1997 3 specimens
Reptilia - Testudines - Emydidae
Emydidae indet. Rafinesque 1815
Clyde 1997
Reptilia
Allognathosuchus sp. Mook 1921
Clyde 1997
Reptilia - Gruiformes - Eogruidae
Eogruidae indet. Wetmore 1934
Clyde 1997
see common names

Geography
Country:United States State/province:Wyoming County:Big Horn
Coordinates: 44.6° North, 108.3° West (view map)
Paleocoordinates:49.4° North, 91.1° 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:Wasatchian
Age range of interval:55.80000 - 50.30000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Willwood
Local section:Foster Gulch - Y U Bench Local bed:45
Local order:bottom to top
Regional section:Southeast Regional bed:1240
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
Reason for describing collection:taxonomic analysis
Museum repositories:UMMP
Collection method comments: Wa-1
Metadata
Database number:15590
Authorizer:J. Alroy, W. Clyde Enterer:J. Alroy, L. Gannon
Modifier:G. Varnham Research group:vertebrate
Created:1993-09-27 00:00:00 Last modified:2022-02-15 07:23:20
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]