Where: Big Horn County, Wyoming (44.5° N, 108.0° W: paleocoordinates 50.2° N, 87.5° W)

• coordinate based on political unit

When: Fort Union Formation, Tiffanian (61.7 - 56.8 Ma)

• Earlier literature referred to this as the 'Polecat Bench Formation'

Environment/lithology: terrestrial; lithology not reported

Size classes: macrofossils, mesofossils

Primary reference: G. F. Gunnell. 1994. Paleocene mammals and faunal analysis of the Chappo Type Locality (Tiffanian), Green River Basin, Wyoming. Journal of Vertebrate Paleontology 14(1):81-104 [J. Alroy/J. Alroy/J. Alroy]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 15055: authorized by John Alroy, entered by John Alroy on 12.04.1997

Creative Commons license: CC BY (attribution)