FG-84: Wasatchian, Wyoming

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia
Aves indet. Linnaeus 1758
Clyde 1997
Allognathosuchus sp. Mook 1921
Clyde 1997
Reptilia - Lacertilia
Lacertilia indet. Owen 1842
Clyde 1997
Reptilia - Anguidae
Melanosaurus sp. Gilmore 1928
Clyde 1997
Reptilia - Testudines
Testudines indet. Batsch 1788
Clyde 1997
Mammalia - Multituberculata - Neoplagiaulacidae
Ectypodus tardus (Jepsen 1940)
Clyde 1997 1 specimen
Mammalia
Ectoganus sp. Cope 1874
Clyde 1997 1 specimen
Mammalia - Apatemyidae
Labidolemur sp. Matthew and Granger 1921
Clyde 1997 1 specimen
Mammalia - Coryphodontidae
Coryphodon eocaenus Owen 1846
Clyde 1997 12 specimens
Mammalia - Esthonychidae
Esthonyx bisulcatus Cope 1874
Clyde 1997 7 specimens
Mammalia - Macroscelidea - Apheliscidae
Haplomylus speirianus (Cope 1880)
Clyde 1997 14 specimens
Mammalia - Condylarthra - Hyopsodontidae
Hyopsodus loomisi McKenna 1960
Clyde 1997 30 specimens
Mammalia - Acreodi - Mesonychidae
Pachyaena gracilis Matthew and Granger 1915
Clyde 1997 2 specimens
Mammalia - Creodonta - Hyaenodontidae
Arfia shoshoniensis (Matthew and Granger 1915)
Gingerich and Deutsch 1989 2 specimens
Mammalia - Creodonta - Oxyaenidae
Clyde 1997 3 specimens
Mammalia
Miacis deutschi Gingerich 1983
Clyde 1997 1 specimen
Mammalia - Viverravidae
Viverravus politus Matthew and Granger 1915
Clyde 1997 1 specimen
Viverravus acutus Matthew and Granger 1915
Clyde 1997 1 specimen
Didymictis protenus (Cope 1874)
Clyde 1997 3 specimens
Didymictis leptomylus Cope 1880
Clyde 1997 1 specimen
Mammalia - Perissodactyla - Equidae
Hyracotherium aemulor Gingerich 1991
Clyde 1997 81 specimens
recombined as Arenahippus aemulor
Mammalia - Perissodactyla
Homogalax protapirinus (Wortman 1896)
Clyde 1997 31 specimens
Cardiolophus radinskyi Gingerich 1991
Clyde 1997 16 specimens
Mammalia - Phenacodontidae
Ectocion osbornianus (Cope 1882)
Clyde 1997 4 specimens
Copecion brachypternus (Cope 1882)
Clyde 1997 1 specimen
Phenacodus intermedius Granger 1915
Clyde 1997 5 specimens
Phenacodus vortmani (Cope 1880)
Clyde 1997 4 specimens
Mammalia - Diacodexeidae
Diacodexis metsiacus (Cope 1882)
Clyde 1997 11 specimens
Mammalia - Procreodi - Arctocyonidae
Thryptacodon antiquus Matthew and Granger 1915
Clyde 1997 1 specimen
Mammalia - Pantolestidae
Palaeosinopa incerta Bown and Schankler 1982
Clyde 1997 2 specimens
Palaeosinopa lutreola Matthew 1918
Clyde 1997 1 specimen
Mammalia - Rodentia - Ischyromyidae
Paramys taurus Korth 1984
Clyde 1997 2 specimens
Mammalia - Primates - Notharctidae
Cantius mckennai (Gingerich and Simons 1977)
Clyde 1997 25 specimens
Mammalia - Primates - Omomyidae
Tetonius matthewi Bown and Rose 1987
2 specimens
Mammalia - Primates - Microsyopidae
Arctodontomys wilsoni (Szalay 1969)
Clyde 1997 2 specimens
Niptomomys doreenae McKenna 1960
Clyde 1997 1 specimen
Mammalia - Primates - Paromomyidae
Phenacolemur simonsi Bown and Rose 1976
Clyde 1997 1 specimen
Actinopteri - Lepisosteiformes - Lepisosteidae
Lepisosteus sp. Agassiz 1843
Clyde 1997
see common names

Geography
Country:United States State/province:Wyoming County:Big Horn
Coordinates: 44.6° North, 108.4° West (view map)
Paleocoordinates:49.4° North, 91.2° 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:Wasatchian
Age range of interval:54.90000 - 50.50000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Willwood
Local section:Coon Creek Local bed:275
Local order:bottom to top
Regional section:Southeast Regional bed:1470
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)
Reason for describing collection:taxonomic analysis
Museum repositories:UMMP
Taxonomic list comments:Wa-3
Metadata
Database number:15592
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 07:24:24
Access level:the public Released:1993-09-27 00:00:00
Creative Commons license:CC BY
Reference information

Primary reference:
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]

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]