Also known as SDSM V-685

Where: Niobrara County, Wyoming (43.3° N, 104.4° W: paleocoordinates 49.7° N, 79.2° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Lance Formation, Lancian (70.6 - 66.0 Ma)

• member-level stratigraphic resolution

Environment/lithology: fluvial; poorly lithified, gray sandstone

Size classes: macrofossils, mesofossils

Reposited in the SDSM

Collection methods: surface (float)

• "surface prospecting" of a blowout

Primary reference: J. L. Whitmore and J. E. Martin. 1986. Vertebrate fossils from the Greasewood Creek locality in the Late Cretaceous Lance Formation of Niobrara County, Wyoming. Proceedings of the South Dakota Academy of Sciences 65:33-50 [J. Alroy/M. Sommers]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 14557: authorized by John Alroy, entered by John Alroy on 15.05.2002

Creative Commons license: CC BY (attribution)