Cooper Lake (UW V-76019) (Eocene of the United States)

Where: Johnson County, Wyoming (44.0° N, 106.6° W: paleocoordinates 48.5° N, 89.4° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Wind River Formation, Wasatchian (55.8 - 50.3 Ma)

Environment/lithology: terrestrial

Reposited in the UW

Primary reference: J. R. Davidson. 1987. Geology and mammalian paleontology of the Wind River Formation, Laramie Basin, southeastern Wyoming. Contributions to Geology, University of Wyoming 25(2):103-132 [J. Alroy/J. Alroy/J. Marcot]more details

PaleoDB collection 15468: authorized by John Alroy, entered by John Alroy on 18.02.1993

Creative Commons license: CC BY (attribution)

Taxonomic list

• apparently the same locality described by Princhinello 1971; all species recorded by her are listed here
NISP: minimum 43, maximum 102, best guess 49.2
Mammalia
 Cimolesta - Pantolestidae
Palaeosinopa cf. incerta Bown and Schankler 1982 eutherian
1
 Cimolesta - Coryphodontidae
Coryphodon eocaenus Owen 1846 pantodont
4-5: presumably includes "C. oweni" 1
 Condylarthra - Hyopsodontidae
Hyopsodus sp.1 Leidy 1870 condylarth
 Creodonta - Oxyaenidae
Dipsalidictis transiens3 Matthew and Granger 1915 creodont
 Creodonta -
cf. Prolimnocyon atavus Matthew and Granger 1915 creodont
1
 Creodonta - Hyaenodontidae
Prototomus cf. martis2 Gingerich and Deutsch 1989 creodont
 Theriamorpha - Viverravidae
Didymictis sp.1 Cope 1875 placental
 Theriamorpha -
Miacis exiguus Matthew and Granger 1915 placental
1
 Theriamorpha - Phenacodontidae
Phenacodus vortmani Cope 1880 condylarth
1-3 (2)
Phenacodus trilobatus4 Cope 1881 condylarth
Copecion brachypternus1 Cope 1882 condylarth
 Perissodactyla - Palaeotheriidae
Hyracotherium sp.1 Owen 1841 odd-toed ungulate
 Perissodactyla -
Homogalax protapirinus Wortman 1896 odd-toed ungulate
1-8 (2.8)
 Artiodactyla - Diacodexeidae
Diacodexis sp.1 Cope 1882 even-toed ungulate
 Theriamorpha -
cf. Talpavoides dartoni Bown and Schankler 1982 placental
1
 Primates - Omomyidae
Tetonius sp. Matthew 1915 tarsier
1-3 (1.5)
 Primates - Microsyopidae
"Haplomylus speirianus" = Microsyops speirianus
"Haplomylus speirianus" = Microsyops speirianus Cope 1880 primate
1-3 (1.7)
 Primates - Notharctidae
Cantius cf. mckennai Gingerich and Simons 1977 primate
1
Cantius cf. frugivorus1 Cope 1875 primate