Boysen Reservoir (48FR65) (Eocene of the United States)

Where: Fremont County, Wyoming (43.2° N, 108.2° W: paleocoordinates 48.0° N, 91.4° W)

• coordinate based on political unit

• small collection-level geographic resolution

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

Environment/lithology: terrestrial

Primary reference: T. E. White. 1952. Preliminary analysis of the vertebrate fossil fauna of the Boysen Reservoir area. Proceedings of the United States National Museum 102(3296):185-207 [J. Alroy/J. Alroy/J. Marcot]more details

PaleoDB collection 15904: authorized by John Alroy, entered by John Alroy on 18.02.1993, edited by Terri Cleary

Creative Commons license: CC BY (attribution)

Taxonomic list

Mammalia
 Condylarthra - Hyopsodontidae
Hyopsodus wortmani Osborn 1902 condylarth
 Theriamorpha - Geolabididae
"Didelphodus altidens" = Centetodon altidens3
"Didelphodus altidens" = Centetodon altidens3 Marsh 1872 placental
 Creodonta -
Prolimnocyon antiquus Matthew and Granger 1915 creodont
 Perissodactyla - Brontotheriidae
Eotitanops borealis2 Cope 1880 brontothere
 Perissodactyla - Equidae
"Protorohippus venticolus" = Protorohippus venticolum1
"Protorohippus venticolus" = Protorohippus venticolum1 Cope 1881 horse
 Perissodactyla -
Heptodon posticus1 Cope 1882 odd-toed ungulate
 Primates - Microsyopidae
Megadelphus lundeliusi1 White 1952 primate
 Cimolesta - Esthonychidae
Esthonyx acutidens Cope 1881 tillodont
 Cimolesta - Coryphodontidae
Coryphodon sp. Owen 1845 pantodont
Reptilia
 Squamata -
Saniwa sp. Leidy 1870 squamates
one dorsal and five caudal vertebrae
 Squamata - Anguidae
"Glyptosaurus donohoei n. sp." = Glyptosaurus sylvestris
"Glyptosaurus donohoei n. sp." = Glyptosaurus sylvestris Marsh 1871 squamates
USNM 18316 (holotype), badly damaged skull; 18317, skull and jaw fragments with scutes