UNSM Sx-37 (Orella C) (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 17287: authorized by John Alroy, entered by John Alroy on 05.08.1996

Creative Commons license: CC BY (attribution)

Taxonomic list

Mammalia
 Rodentia - Ischyromyidae
Ischyromys typus Leidy 1856 rodent
Orella C; probably OK in light of Heaton 1993
 Rodentia - Eomyidae
Paradjidaumo validus n. sp.1 Korth 1980 rodent
Orella C according to Korth 1989b
 Carnivora - Canidae
Hesperocyon gregarius2 Cope 1873 canid
Orella C