SC-40 (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: W. Granger and G. G. Simpson. 1928. Multituberculates in the Wasatch Formation. American Museum Novitates 312:1-4 [J. Alroy/J. Alroy/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 15749: authorized by John Alroy, entered by John Alroy on 27.09.1993

Creative Commons license: CC BY (attribution)

Taxonomic list

• 1912 AMNH locality 3 mi SE of the mouth of Pat O'Hara Creek: see Gunnell and Gingerich 1991
meter level given by Gunnell and Gingerich 1991
Mammalia
 Perissodactyla - Equidae
"Hyracotherium grangeri" = Sifrhippus grangeri3
"Hyracotherium grangeri" = Sifrhippus grangeri3 Gingerich 1989 horse
"Eohippus"
 Perissodactyla -
Cardiolophus radinskyi3 Gingerich 1991 odd-toed ungulate
 Artiodactyla - Dichobunidae
Dichobunidae indet.1 Gill 1872 even-toed ungulate
 Theriamorpha - Viverravidae
Viverravus politus7 Matthew and Granger 1915 placental
Didymictis leptomylus7 Cope 1880 placental
 Creodonta - Oxyaenidae
Dipsalidictis transiens6 Matthew and Granger 1915 creodont
 Creodonta - Hyaenodontidae
Arfia zele n. sp.4
Arfia zele n. sp.4 Gingerich and Deutsch 1989 creodont
 Primates - Notharctidae
Cantius ralstoni2 Matthew 1915 primate
 Primates - Microsyopidae
Arctodontomys wilsoni5 Szalay 1969 primate
 Multituberculata - Eucosmodontidae
"Neoliotomus ultimus" = Eucosmodon ultimus1
"Neoliotomus ultimus" = Eucosmodon ultimus1 Granger and Simpson 1928 multituberculate