SC-123 (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 15773: authorized by John Alroy, entered by John Alroy on 27.09.1993, edited by Jonathan Marcot

Creative Commons license: CC BY (attribution)

Taxonomic list

Mammalia
 Theriamorpha - Metacheiromyidae
Palaeanodon nievelti3 Gingerich 1989 placental
 Creodonta - Hyaenodontidae
Arfia zele4 Gingerich and Deutsch 1989 creodont
 Theriamorpha - Viverravidae
Viverravus acutus7 Matthew and Granger 1915 placental
 Perissodactyla - Equidae
"Arenahippus grangeri" = Sifrhippus grangeri2
"Arenahippus grangeri" = Sifrhippus grangeri2 Gingerich 1989 horse
 Rodentia - Ischyromyidae
Microparamys hunterae6 Ivy 1990 rodent
 Primates - Micromomyidae
"Micromomys cf. antelucanus" = Chalicomomys antelucanus1, "Micromomys cf. willwoodensis" = Dryomomys willwoodensis5
"Micromomys cf. antelucanus" = Chalicomomys antelucanus1 Beard and Houde 1989 primate
"Micromomys cf. willwoodensis" = Dryomomys willwoodensis5 Rose and Bown 1982 primate
 Multituberculata - Eucosmodontidae
"Neoliotomus ultimus" = Eucosmodon ultimus
"Neoliotomus ultimus" = Eucosmodon ultimus Granger and Simpson 1928 multituberculate