UNSM Sx-6 (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: 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 17221: authorized by John Alroy, entered by John Alroy on 05.08.1996

Creative Commons license: CC BY (attribution)

Taxonomic list

• sec 31 T33N R55W, secs 1 and 2 T32N R56W
Show authors, comments, and common names
Mammalia
 Rodentia - Aplodontidae
"Prosciurus relictus" = Altasciurus relictus
"Prosciurus relictus" = Altasciurus relictus Cope 1873 mountain beaver
Orella C
 Rodentia -
Epeiromys spanius n. sp.
Epeiromys spanius n. sp. Korth 1989 rodent
Orella C
 Rodentia - Heliscomyidae
Heliscomys hatcheri2
Heliscomys hatcheri2 Wood 1935 rodent
Orella C
 Rodentia - Eomyidae
Paradjidaumo validus2
Paradjidaumo validus2 Korth 1980 rodent
Orella C
 Lagomorpha - Leporidae
Megalagus turgidus3, Palaeolagus haydeni3, Palaeolagus burkei3
Megalagus turgidus3 Cope 1873 rabbit
Orella C
Palaeolagus haydeni3 Leidy 1856 rabbit
Orella C
Palaeolagus burkei3 Schlaikjer 1935 rabbit
Orella C
 Carnivora - Canidae
Hesperocyon gregarius5
Hesperocyon gregarius5 Cope 1873 canid
Orella C
 Artiodactyla - Leptochoeridae
Stibarus obtusilobus1
Stibarus obtusilobus1 Cope 1873 even-toed ungulate
Orella C
 Theriamorpha - Leptictidae
Blacktops longinares n. gen. n. sp.4, Blacktops latidens n. sp.4
Blacktops longinares n. gen. n. sp.4 Meehan and Martin 2010 eutherian
Blacktops latidens n. sp.4 Meehan and Martin 2010 eutherian
1Edwards 1976; 2Korth 1989; 3Korth and Hageman 1988; 4Meehan and Martin 2010; 5Wang 1994