Gateway to the Paleobiology Database
Onychomys pedroensis Gidley 1922 (grasshopper mouse)

Mammalia - Glires - Cricetidae

PaleoDB taxon number: 49353

Synonym: Onychomys fossilis Hibbard 1941 (taxon 49346)

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

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: scansorial insectivore

Average measurements (in mm): M1 2.03 x 1.27, M2 1.46 x 1.31, M3 0.940 x 0.960, m1 1.87 x 1.19

Estimated body mass: 32.8 g based on m1 length