SC-69 (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. 1989. New earliest Wasatchian mammalian fauna from the Eocene of northwestern Wyoming: composition and diversity in a rarely sampled high-floodplain assemblage. University of Michigan Papers on Paleontology 28:1-97 [J. Alroy/J. Alroy/J. Alroy]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 15760: authorized by John Alroy, entered by John Alroy on 18.02.1993

Creative Commons license: CC BY (attribution)

Taxonomic list

• Wa-0
Chron 24R: Butler et al. 1981
Gastropoda
 Cerithioidea - Pleuroceridae
Pleuroceridae indet. Thiele 1929 snail
 Sorbeoconcha - Hydrobiidae
"Hydrobia" sp. Hartmann 1821 snail
 Heterostropha - Planorbidae
cf. Gyraulus sp. Charpentier 1837 snail
Actinopteri
 Lepisosteiformes - Lepisosteidae
Lepisosteus sp. Agassiz 1843 gar
Reptilia
 Loricata -
Crocodylia indet. crocodilian
 Squamata - Anguidae
Melanosaurus maximus Gilmore 1928 squamates
Mammalia
 Condylarthra - Hyopsodontidae
Hyopsodus loomisi McKenna 1960 condylarth
 Primates - Notharctidae
Cantius torresi Gingerich 1986 primate
 Creodonta - Hyaenodontidae
Arfia junnei Gingerich 1989 creodont
 Tribosphenida - Phenacodontidae
Copecion davisi Gingerich 1989 condylarth
Ectocion parvus Granger 1915 condylarth
 Perissodactyla - Equidae
"Hyracotherium sandrae" = Sifrhippus sandrae
"Hyracotherium sandrae" = Sifrhippus sandrae Gingerich 1989 horse
 Tribosphenida - Peradectidae
Mimoperadectes labrus n. sp. Bown and Rose 1979 marsupial
see Bown and Rose 1979
Angiospermae
 Rosales - Ulmaceae