Where: Park County, Wyoming (44.5° N, 108.7° W: paleocoordinates 49.3° N, 91.5° W)

• coordinate estimated from map

• small collection-level geographic resolution

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

• said to be late Graybullian

• group of beds-level stratigraphic resolution

Environment/lithology: fluvial-lacustrine; lithified siliciclastic sediments

Size classes: macrofossils, mesofossils

Reposited in the UMMP

Collection methods: surface (float), surface (in situ),

Primary reference: K. D. Rose, K. C. Beard, and P. Houde. 1993. Annals of Carnegie Museum 62(4) [J. Alroy/J. Alroy]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 15701: authorized by John Alroy, entered by John Alroy on 26.07.1994, edited by Leah Gannon and Will Clyde

Creative Commons license: CC BY (attribution)