Where: Wyoming (44.5° N, 108.3° W: paleocoordinates 49.8° N, 89.5° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Willwood Formation, Clarkforkian (56.8 - 55.8 Ma)

• bed-level stratigraphic resolution

Environment/lithology: fluvial; lithified mudstone

Size class: macrofossils

Preservation: adpression, original carbon

Collection methods: quarrying,

Primary reference: S. L. Wing, J. Alroy, and L.J. Hickey. 1995. Plant and mammal diversity in the Paleocene to Early Eocene of the Bighorn Basin. Palaeogeography, Palaeoclimatology, Palaeoecology 115:117-155 [S. Wing/H. Sims] more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 11420: authorized by Scott Wing, entered by John Burns on 15.08.2001