UNSM Sx-14 (Orella A) (Oligocene of the United States)

Also known as Meng Ranch, in part

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: W. W. Korth. 1989. Aplodontid Rodents (Mammalia) from the Oligocene (Orellan and Whitneyan) Brule Formation, Nebraska. Journal of Vertebrate Paleontology 9(4):400-414 [J. Alroy/J. Alroy/J. Ju]more details

PaleoDB collection 17239: authorized by John Alroy, entered by John Alroy on 05.08.1996

Creative Commons license: CC BY (attribution)

Taxonomic list

• secs 7, 18 T33N R53W and sec 12 T33N R54W
Mammalia
 Rodentia - Aplodontidae
"Prosciurus relictus" = Altasciurus relictus
"Prosciurus relictus" = Altasciurus relictus Cope 1873 mountain beaver
Orella A or B at Sx-14; Orella A at S 1/2 sec 12 T33N R54W
 Rodentia - Sciuridae
Oligospermophilus douglassi1 Korth 1981 squirrel
S 1/2 sec 12 T33N R54W in Orella A, i.e., Sx-14; also lower Orella at Sx-14
 Rodentia - Eomyidae
Adjidaumo intermedius2 Korth 1989 rodent
Orella A
 Lagomorpha - Leporidae
Megalagus turgidus3 Cope 1873 rabbit
Orella A
Palaeolagus hemirhizis3 Korth and Hageman 1988 rabbit
Orella A