Abundance: 0.06 to 32.32% (median 1.94%)

Latitudinal range: 19.4° to 46.6°

Habitats: (39), temperate broadleaf/mixed forest (1)

Found in 40 samples

Mexico: El Zurdo (Holocene), Cerro Portezuelo (Holocene)

United States: Sierra National Forest (pitfall traps), Zesch Cave (Late Pleistocene), Crystal Ball Cave (Late Pleistocene), Silver Creek (Late Pleistocene), Papago Springs Cave (Late Pleistocene), Haystack Cave (upper levels) (Pleistocene - Holocene), Haystack Cave (lower levels) (Late Pleistocene), Saber-tooth Cave (Late Pleistocene), Cueva Quebrada (Late Pleistocene), CA-SLO-585 (Locus 6A, Early-Middle Holocene) (Holocene), CA-SLO-585 (Locus 6A, Late Holocene) (Holocene), Scripps Poway Parkway (Feature F) (Holocene), Scripps Poway Parkway (Feature E) (Holocene), North Creek Shelter (Paleoarchaic) (Holocene), North Creek Shelter (Early Archaic) (Holocene), Bone Cave (Holocene), Rattlesnake Point Pueblo (Unit 2) (Holocene), Dead Indian Creek (Holocene), Camels Back Cave (Stratum I) (Holocene), Camels Back Cave (Stratum II) (Holocene), Pacific City (Late Pleistocene), Kathy's Pit (Pleistocene - Holocene), Mescal Cave (Pleistocene - Holocene), Pintwater Cave (Unit 3, level 8) (Late Pleistocene), Sunshine Locality (Unit A) (Holocene), Sunshine Locality (Unit B) (Holocene), Sunshine Locality (Unit C) (Holocene), Sunshine Locality (Unit D) (Holocene), Sunshine Locality (Unit E) (Late Pleistocene), Smith Creek Canyon (Reddish-brown Silt) (Late Pleistocene), Schulze Cave (layer B) (Holocene), Schulze Cave (layer C1) (Late Pleistocene), Schulze Cave (layer C2) (Late Pleistocene), Eleventh Hour Site (Room 7, Layer 2) (Holocene), Marmes Rockshelter (Harrison horizon) (Pleistocene - Holocene), Marmes Rockshelter (Marmes horizon) (Holocene), Marmes Rockshelter (A6–16 horizon) (Late Pleistocene), Cumberland Cave (Middle Pleistocene)

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