Manitsha Site (Oligocene of the United States)

Where: Harding County, South Dakota (45.5° N, 103.1° W: paleocoordinates 46.6° N, 94.7° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: White River Group, Orellan (33.9 - 33.3 Ma)

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Collected by K. Briggs in 1940; reposited in the AMNH

Primary reference: R. W. Wilson and J. A. Lillegraven. 1978. Type locality of the giant rodent Manitsha tanka Simpson (Protrogomorpha, Paramyidae). Occasional Papers, Museum, Texas Tech University 52 [J. Alroy/J. Alroy/J. Ju]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 17136: authorized by John Alroy, entered by John Alroy on 18.02.1993

Creative Commons license: CC BY (attribution)

Taxonomic list

• said by Wilson and Lillegraven to be from the lower Brule, but Wahlert 1974 claims that this is erroneous and the locality is actually in the Chadron Fm.
Show authors, comments, and common names
Mammalia
 Artiodactyla - Merycoidodontidae
? Merycoidodon sp.
? Merycoidodon sp. Leidy 1848 oreodont
 Perissodactyla - Equidae
Equidae indet.1
Equidae indet.1 Gray 1821 horse
 Lagomorpha - Leporidae
Leporidae indet.
Leporidae indet. Fischer de Waldheim 1817 rabbit
 Rodentia - Ischyromyidae
? Ischyromys sp., Manitsha tanka n. gen. n. sp.2
? Ischyromys sp. Leidy 1856 rodent
Manitsha tanka n. gen. n. sp.2 Simpson 1941 rodent
 Rodentia - Eomyidae
Eomyidae indet.
Eomyidae indet. Winge 1887 rodent
1Alroy 2002; 2Simpson 1941