SC-342 (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 15830: authorized by John Alroy, entered by John Alroy on 27.09.1993

Creative Commons license: CC BY (attribution)

Taxonomic list

Actinopteri
 Amiiformes - Amiidae
Amia sp. Linnaeus 1766 bowfin
Reptilia
 Loricata -
Crocodylia indet. crocodilian
 Crocodylia - Alligatoridae
Allognathosuchus sp. Mook 1921 crocodilian
 Squamata - Anguidae
Melanosaurus maximus Gilmore 1928 lizard
Mammalia
 Condylarthra - Hyopsodontidae
Hyopsodus loomisi McKenna 1960 condylarth
 Tribosphenida - Arctocyonidae
Chriacus sp. Cope 1883 condylarth