Also known as SDSM V-772

Where: Sioux County, Nebraska (42.4° N, 103.8° W: paleocoordinates 43.8° N, 95.1° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Big Cottonwood Creek Member (Chadron Formation), Chadronian (37.2 - 33.9 Ma)

• member assignment based on LaGarry pers. commun. 19 May 2005

Environment/lithology: terrestrial

Size classes: macrofossils, mesofossils

Reposited in the SDSM

Collection methods: bulk, surface (float), sieve,

• large and small mammals both are "scattered about the surface" but most microvertebrates coming from "Approximately 2,800 pounds of sediment were obtained from three sub-localities... by employing the [standard] screen washing techniques" (Ostrander 1983)

Primary reference: G. E. Ostrander. 1985. Correlation of the early Oligocene (Chadronian) in northwestern Nebraska. Dakoterra 2(2):205-231 [J. Alroy/J. Alroy/P. Holroyd]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 17014: authorized by John Alroy, entered by John Alroy on 18.02.1993, edited by Patricia Holroyd

Creative Commons license: CC BY (attribution)