Where: Big Horn County, Wyoming (44.4° N, 108.2° W: paleocoordinates 49.2° N, 91.0° W)

• coordinate based on nearby landmark

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

• "Lower Gray Bull formation, Lower Eocene" (= Willwood Formation, Wasatchian)

Environment/lithology: fluvial-lacustrine; lithology not reported

Size class: macrofossils

Collected by T. C. Storch in 1927

• Princeton University Palaeontological Museum collection

Primary reference: W. J. Sinclair. 1928. Omorhamphus, a new flightless bird from the Lower Eocene of Wyoming. Proceedings of the American Philosophical Society 67(1):51-65 [J. Alroy/J. Alroy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 74626: authorized by John Alroy, entered by John Alroy on 17.08.2007

Creative Commons license: CC BY (attribution)