SC-46 (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: P. D. Gingerich and H. A. Deutsch. 1989. Systematics and Evolution of Early Eocene Hyaenodontidae (Mammalia, Creodonta) in the Clarks Fork Basin, Wyoming. Contributions from the Museum of Paleontology, University of Michigan 27(13):327-391 [J. Alroy/J. Alroy/J. Marcot]more details

PaleoDB collection 15754: authorized by John Alroy, entered by John Alroy on 27.09.1993

Creative Commons license: CC BY (attribution)

Taxonomic list

• meter level given by Gunnell and Gingerich 1991
 Perissodactyla - Equidae
"Hyracotherium grangeri" = Sifrhippus grangeri2
"Hyracotherium grangeri" = Sifrhippus grangeri2 Gingerich 1989 horse
 Creodonta - Oxyaenidae
Dipsalidictis transiens4 Matthew and Granger 1915 creodont
Oxyaena gulo4 Matthew and Granger 1915 creodont
 Ferae - Viverravidae
Didymictis leptomylus5 Cope 1880 placental
Viverravus politus5 Matthew and Granger 1915 placental
Viverravus acutus5 Matthew and Granger 1915 placental
 Ferae - Metacheiromyidae
Palaeanodon nievelti1 Gingerich 1989 placental
 Macroscelidea - Apheliscidae
Apheliscus chydaeus3 Gingerich 1994 elephant shrew
 Ungulata - Hyopsodontidae
Hyopsodus sp.6 Leidy 1870 condylarth
 Hyaenodonta - Hyaenodontidae
Acarictis ryani Gingerich and Deutsch 1989 eutherian
Prototomus martis Gingerich and Deutsch 1989 eutherian
Arfia shoshoniensis Matthew and Granger 1915 eutherian