Where: Park County, Wyoming (45.0° N, 109.1° W: paleocoordinates 49.9° N, 91.8° W)

• coordinate based on nearby landmark

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

• "Lower Eocene of the Sand Coulee Beds" (= Wasatchian of the Willwood Formation)

Environment/lithology: fluvial-lacustrine; lithology not reported

Size class: macrofossils

Collected by Princeton University in 1928

Primary reference: A. Wetmore. 1933. Fossil bird remains from the Eocene of Wyoming. The Condor 35(3):115-118 [J. Alroy/J. Alroy/J. Alroy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 74619: authorized by John Alroy, entered by John Alroy on 16.08.2007, edited by Terri Cleary

Creative Commons license: CC BY (attribution)