SC-12 (Eocene of the United States)

Where: Park County, Wyoming (44.3° N, 109.0° W: paleocoordinates 49.2° N, 91.9° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Willwood Formation, Wasatchian (55.8 - 50.3 Ma)

Environment/lithology: terrestrial

Reposited in the UMMP

Primary reference: D. W. Krause. 1982. Multituberculates from the Wasatchian Land-Mammal Age, Early Eocene, of Western North America. Journal of Paleontology 56(2):271-294 [J. Alroy/J. Alroy/J. Ju]more details

PaleoDB collection 15733: authorized by John Alroy, entered by John Alroy on 27.09.1993

Creative Commons license: CC BY (attribution)

Taxonomic list

• meter level based on Bown and Rose 1987: 1520 m added to their figure, which is from the base of the Willwood
Mammalia
 Multituberculata - Neoplagiaulacidae
Parectypodus lunatus Krause 1982 multituberculate
 Primates - Microsyopidae
Arctodontomys wilsoni5 Szalay 1969 primate
 Primates - Omomyidae
Teilhardina sp.1 Simpson 1940 tarsier
T. crassidens-americana intergrade
 Perissodactyla -
Cardiolophus radinskyi2 Gingerich 1991 odd-toed ungulate
 Perissodactyla - Equidae
"Hyracotherium grangeri" = Sifrhippus grangeri2
"Hyracotherium grangeri" = Sifrhippus grangeri2 Gingerich 1989 horse
 Creodonta -
Prolimnocyon haematus4 Gingerich and Deutsch 1989 creodont
 Creodonta - Hyaenodontidae
Prototomus martis4 Gingerich and Deutsch 1989 creodont
Arfia shoshoniensis4 Matthew and Granger 1915 creodont
 Macroscelidea - Apheliscidae
Apheliscus chydaeus3 Gingerich 1994 elephant shrew