SC-253 (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: G. F. Gunnell. 1985. Systematics of Early Eocene Microsyopinae (Mammalia, Primates) in the Clark's Fork Basin, Wyoming. Contributions from the Museum of Paleontology, University of Michigan 27(2):51-71 [J. Alroy/J. Alroy/M. Uhen]more details

PaleoDB collection 15803: 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
 Primates - Microsyopidae
Microsyops angustidens Matthew 1915 primate
 Primates - Omomyidae
Pseudotetonius ambiguus1 Matthew 1915 tarsier
 Perissodactyla - Equidae
"Hyracotherium pernix" = Arenahippus pernix2
"Hyracotherium pernix" = Arenahippus pernix2 Marsh 1876 horse
 Creodonta - Hyaenodontidae
Prototomus phobos4 Gingerich and Deutsch 1989 creodont
 Theriamorpha - Viverravidae
Viverravus acutus5 Matthew and Granger 1915 placental
 Macroscelidea - Apheliscidae
Haplomylus scottianus3 Gingerich 1994 elephant shrew