Herb Geike Ranch (Orellan) (Oligocene of the United States)

Also known as UNSM Sx-36 (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: Orellan (33.9 - 33.3 Ma)

Environment/lithology: terrestrial

Reposited in the UNSM

Primary reference: X. Wang. 1994. Phylogenetic systematics of the Hesperocyoninae (Carnivora: Canidae). Bulletin of the American Museum of Natural History 221:1-207 [J. Alroy/J. Alroy/J. Alroy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 17112: authorized by John Alroy, entered by John Alroy on 21.09.1998

Creative Commons license: CC BY (attribution)

Taxonomic list

• based on Prothero 1996c, correlation to the standard Pine Ridge section based on lithostratigraphy is ambiguous
secs 17, 18, 19, and 20 T33N R56W
Mammalia
 Carnivora - Amphicyonidae
Daphoenus sp.1 Leidy 1853 bear-dog
"Orella Member... Geike Ranch, N of Harrison, Sioux Co."
 Carnivora - Canidae
Hesperocyon gregarius Cope 1873 canid
multiple specimens from 30 to 110 ft above the PWL
 Artiodactyla - Camelidae
Poebrotherium wilsoni2 Leidy 1847 camel
"Geike Ranch, Sioux Co. ... early Orellan"
Paratylopus labiatus2 Cope 1881 camel
Geike Ranch, Sioux Co. ... 0-30 feet above the PWL"