Where: Keya Paha County, Nebraska (42.8° N, 99.7° W: paleocoordinates 43.4° N, 96.4° W)

• coordinate based on political unit

When: Cornell Dam Member (Valentine Formation), Barstovian (16.3 - 12.5 Ma)

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Primary reference: M. F. Skinner and F. W. Johnson. 1984. Tertiary stratigraphy and the Frick Collection of fossil vertebrates from north-central Nebraska. Bulletin of the American Museum of Natural History 178(3):1-368 [J. Alroy/J. Alroy/J. Alroy]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 18287: authorized by John Alroy, entered by John Alroy on 17.06.2000

Creative Commons license: CC BY (attribution)