UNSM Sx-23 (Whitney A) (Oligocene of the United States)

Where: Sioux County, Nebraska (42.4° N, 103.8° W: paleocoordinates 43.4° N, 96.3° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: lower Whitney Member (Brule Formation), Whitneyan (33.3 - 30.8 Ma)

Environment/lithology: terrestrial

Reposited in the UNSM

Primary reference: W. W. Korth and J. Hageman. 1988. Lagomorphs (Mammalia) from the Oligocene (Orellan and Whitneyan) Brule Formation, Nebraska. Transactions of the Nebraska Academy of Sciences 16:141-152 [J. Alroy/J. Alroy/J. Marcot]more details

PaleoDB collection 17420: authorized by John Alroy, entered by John Alroy on 05.08.1996

Creative Commons license: CC BY (attribution)

Taxonomic list

• "Stenopsochoerus douglasensis" specimen of Schultz and Falkenbach 1956 from Brule Zone C was tentatively referred by the authors and is not mentioned by Stevens and Stevens 1996, who restrict the senior synonym (M. chadronensis) to the Chadron and Brule A
Mammalia
 Artiodactyla - Merycoidodontidae
Miniochoerus starkensis Schultz and Falkenbach 1956 oreodont
 Lagomorpha - Leporidae
Megalagus cf. turgidus Cope 1873 rabbit
Whitney A; probably omitted by Korth 1989b because it is not certainly identified