Onychomys pedroensis Gidley 1922 (grasshopper mouse)

Mammalia - Rodentia - Cricetidae

Synonym: Onychomys fossilis Hibbard 1941

Full reference: J. W. Gidley. 1922. Preliminary report on fossil vertebrates of the San Pedro Valley, Arizona, with descriptions of new species of Rodentia and Lagomorpha. Shorter contributions to general geology, 1922 131:119-131

Belongs to Onychomys according to J. W. Gidley 1922

See also Carleton and Eshelman 1979, Dalquest and Schultz 1992, Eshelman and Hibbard 1981, Hibbard 1941 and Kurten and Anderson 1980

Sister taxa: Onychomys bensoni, Onychomys gidleyi, Onychomys hollisteri, Onychomys jinglebobensis, Onychomys larrabeei, Onychomys leucogaster, Onychomys martini, Onychomys torridus

Type specimens:

  • Onychomys pedroensis: USNM 10506, a mandible (Portion of a left lower jaw carrying the first and last cheek teeth)
  • Onychomys fossilis:

Ecology: ground dwelling herbivore


• Quaternary of United States (6: Kansas, Nebraska, South Dakota, Texas collections)

• Blancan of United States (5: Arizona, Kansas)

Total: 11 collections each including a single occurrence

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Specimen images are retrieved through the ePANDDA API.

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