UNSM Sx-19 (Orella A) (Oligocene of the United States)

Where: Sioux County, Nebraska (42.4° N, 103.8° W: paleocoordinates 43.6° N, 95.7° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: lower Orella Member (Brule Formation), Orellan (33.9 - 33.3 Ma)

Environment/lithology: terrestrial

Reposited in the UNSM

Primary reference: J. A. Howe. 1966. The Oligocene Rodent Ischyromys in Nebraska. Journal of Paleontology 40(5):1200-1210 [J. Alroy/J. Alroy/J. Ju]more details

PaleoDB collection 17255: authorized by John Alroy, entered by John Alroy on 05.08.1996

Creative Commons license: CC BY (attribution)

Taxonomic list

Mammalia
 Rodentia - Ischyromyidae
Ischyromys sp.1 Leidy 1856 rodent
 Lagomorpha - Leporidae
Palaeolagus hemirhizis2 Korth and Hageman 1988 rabbit
Orella A