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, Cerro Portezuelo

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

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