SC-345 (Eocene of the United States)

Where: Park County, Wyoming (44.8° N, 109.1° W: paleocoordinates 49.8° N, 92.7° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Willwood Formation, Wasatchian (55.8 - 50.3 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: terrestrial; red mudstone

• "bright double [mudstone] red beds"

Size classes: macrofossils, mesofossils

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: paleoecologic analysis

PaleoDB collection 27353: authorized by John Alroy, entered by John Alroy on 03.12.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

Gastropoda
 Stylommatophora - Urocoptidae
Holospira sp. Martens 1860 slug
Mammalia
 Theriamorpha - Phenacodontidae
Copecion davisi Gingerich 1989 condylarth
Reptilia
 Loricata -
Crocodylia indet. crocodilian
Actinopteri
 Lepisosteiformes - Lepisosteidae
Lepisosteus sp. Agassiz 1843 gar