Where: Washakie County, Wyoming (44.1° N, 107.9° W: paleocoordinates 48.9° N, 90.7° 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

Size classes: macrofossils, mesofossils

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 27349: authorized by John Alroy, entered by John Alroy on 03.12.2002

Creative Commons license: CC BY (attribution)