Thomomys umbrinus (rodent)

Abundance: 0.06 to 0.72% (median 0.15%)

Latitudinal range: 30.3° to 39.5°

Habitats: (4) only

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Found in 4 samples

United States: Crystal Ball Cave, Schulze Cave (layer B), Schulze Cave (layer C1), Schulze Cave (layer C2)

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