SC-139 (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 15780: authorized by John Alroy, entered by John Alroy on 18.02.1993

Creative Commons license: CC BY (attribution)

Taxonomic list

• Wa-0
Gastropoda
 Stylommatophora - Urocoptidae
"Holospira" sp. Martens 1860 slug
Mammalia
 Cimolesta - Coryphodontidae
Coryphodon eocaenus2 Owen 1846 pantodont
 Theriamorpha - Phenacodontidae
Ectocion parvus Granger 1915 condylarth
Copecion davisi Gingerich 1989 condylarth
 Perissodactyla - Equidae
"Hyracotherium sandrae" = Sifrhippus sandrae
"Hyracotherium sandrae" = Sifrhippus sandrae Gingerich 1989 horse
 Creodonta - Hyaenodontidae
Hyaenodontidae indet. Leidy 1869 creodont
might be Prolimnocyon eerius
 Rodentia - Ischyromyidae
Paramys taurus Korth 1984 rodent
Reptilia
 Squamata - Anguidae
Melanosaurus maximus Gilmore 1928 squamates
 Loricata -
Crocodylia indet.1 crocodilian
 Crocodylia - Alligatoridae
Allognathosuchus sp. Mook 1921 crocodilian
Actinopteri
 Lepisosteiformes - Lepisosteidae
Lepisosteus sp. Agassiz 1843 gar