MP-258: Wasatchian, Wyoming

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia - Crocodilia
Crocodilia indet. Owen 1842
specimens
spelled with current rank as Crocodylia
Mammalia - Esthonychidae
Esthonyx spatularius Cope 1880
2 specimens
Mammalia - Condylarthra - Hyopsodontidae
Hyopsodus loomisi McKenna 1960
4 specimens
Mammalia - Creodonta - Oxyaenidae
Oxyaena sp. Cope 1874
1 specimen
Mammalia - Phenacodontidae
Ectocion osbornianus (Cope 1882)
6 specimens
Mammalia - Perissodactyla - Equidae
Hyracotherium grangeri Gingerich 1989
28 specimens
recombined as Sifrhippus grangeri
Mammalia - Diacodexeidae
Diacodexis robustus Sinclair 1914
2 specimens
recombined as Bunophorus robustus
Diacodexis metsiacus (Cope 1882)
6 specimens
Mammalia - Procreodi - Arctocyonidae
Thryptacodon antiquus Matthew and Granger 1915
2 specimens
Mammalia - Rodentia - Ischyromyidae
Microparamys cheradius Ivy 1990
1 specimen
Mammalia - Primates - Notharctidae
Cantius mckennai (Gingerich and Simons 1977)
3 specimens
Actinopteri - Amiiformes - Amiidae
Amia sp. Linnaeus 1766
specimens
see common names

Geography
Country:United States State/province:Wyoming
Coordinates: 44.7° North, 108.7° West (view map)
Paleocoordinates:49.5° North, 91.5° West
Basis of coordinate:estimated from map
Geographic resolution:small collection
Time
Period:Paleogene Epoch:Eocene
Stage:Ypresian 10 m.y. bin:Cenozoic 2
Key time interval:Wasatchian
Age range of interval:55.80000 - 50.30000 m.y. ago
Stratigraphy
Formation:Willwood
Local section:Roan Wash Local bed:230
Regional section:MP Central Regional bed:230
Stratigraphic resolution:group of beds
Stratigraphy comments: Wa-2
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 methods:surface (float),surface (in situ),survey of museum collection
Reason for describing collection:biostratigraphic analysis
Museum repositories:UMMP
Metadata
Database number:46821
Authorizer:W. Clyde Enterer:W. Clyde
Modifier:W. Clyde Research group:vertebrate
Created:2005-01-24 09:55:26 Last modified:2005-01-24 11:55:26
Access level:the public Released:2005-01-24 09:55:26
Creative Commons license:CC BY
Reference information

Primary reference:

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]