Sheep Mountain (Middle Oreodon) (Oligocene of the United States)

Also known as DUPLICATE REF 3725 or 3745

Where: Shannon County, South Dakota (43.7° N, 102.6° W: paleocoordinates 44.8° N, 94.4° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Scenic Member (Brule Formation), Orellan (33.9 - 33.3 Ma)

Environment/lithology: terrestrial; lithology not reported

Size classes: macrofossils, mesofossils

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

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 17179: authorized by John Alroy, entered by John Alroy on 05.08.1996, edited by Terri Cleary

Creative Commons license: CC BY (attribution)

Taxonomic list

Mammalia
 Artiodactyla - Merycoidodontidae
Miniochoerus starkensis1 Schultz and Falkenbach 1956 oreodont
Merycoidodon bullatus1 Leidy 1869 oreodont
"Merycoidodon culbertsoni" = Merycoidodon culbertsonii3 Leidy 1848 oreodont
"Merycoidodon culbertsoni osborni": "W. side of Sheep Mt. (Indian Creek area)"; "above base of Middle Oreodon"
 Rodentia - Ischyromyidae
Ischyromys typus1 Leidy 1856 rodent
 Rodentia - Cricetidae
Scottimus exiguus1 Wood 1937 mouse
Reptilia
 Squamata -
Peltosaurus granulosus2 Cope 1873 squamates
USNM 10976, considerable number of dermal scutes in coprolites