UNSM Mo-103 (Whitney B) (Oligocene of the United States)

Also known as Jail Rock
DUPLICATE REF 3725 or 3745

Where: Morrill County, Nebraska (41.7° N, 103.1° W: paleocoordinates 42.7° N, 95.7° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Whitney Member (Brule Formation), Whitneyan (33.3 - 30.8 Ma)

Environment/lithology: terrestrial

Reposited in the UNSM

Primary reference: A. E. Wood. 1937. The Mammalian Fauna of the White River Oligocene: Part II. Rodentia. Transactions of the American Philosophical Society 28(2):155-269 [J. Alroy/J. Alroy/J. Marcot]more details

PaleoDB collection 17393: authorized by John Alroy, entered by John Alroy on 05.08.1996

Creative Commons license: CC BY (attribution)

Taxonomic list

Mammalia
 Rodentia - Florentiamyidae
"Proheteromys nebraskensis" = Kirkomys nebraskensis
"Proheteromys nebraskensis" = Kirkomys nebraskensis Wood 1937 rodent
"Protoceras sandstones, Upper Brule, below the top ash, Jail Rock, Morrill County" = Whitney B DUPLICATE REF 3725 or 3745
 Rodentia - Cricetidae
Scottimus lophatus n. sp. Wood 1937 mouse
from "Upper Brule... Chimney Rock, below the upper ash" = Whitney B; this is actually Jail Rock, UNSM Mo-103, see Martin 1980a DUPLICATE REF 3725 or 3745