Abundance: 0.61 to 12.90% (median 1.82%)

Latitudinal range: 36.6° to 46.6°

Habitats: (7) only

Found in 7 samples

United States: Silver Creek (Late Pleistocene), Haystack Cave (lower levels) (Late Pleistocene), Dead Indian Creek (Holocene), Pintwater Cave (Unit 3, level 8) (Late Pleistocene), Marmes Rockshelter (Harrison horizon) (Pleistocene - Holocene), Marmes Rockshelter (Marmes horizon) (Holocene), Marmes Rockshelter (A6–16 horizon) (Late Pleistocene)

See also Thomomys, Thomomys bottae, Thomomys orientalis, Thomomys potamacensis, Thomomys sp., Thomomys spp., Thomomys umbrinus