Abundance: 0.09 to 35.75% (median 1.10%)

Latitudinal range: 29.5° to 37.8°

Habitats: (3), tropical/subtropical coniferous forest (2), tropical/subtropical dry broadleaf forest (1)

Found in 6 samples

Mexico: Huasabas-Sahuaripa Region, Ajos, Madera West

United States: Papago Springs Cave (Late Pleistocene), North Creek Shelter (Paleoarchaic) (Holocene), North Creek Shelter (Early Archaic) (Holocene)

See also Otospermophilus, Otospermophilus beecheyi, Otospermophilus sp.