Thomomys baileyi baileyi Merriam, 1901:109

Sierra Blanca pocket gopher



Taxonomy & Nomenclature



Conservation Status

Extinct (Schmidly et al., 2022)

Last record: 1940 (Schmidly et al., 2023)



Texas, USA

Type locality: “railway station at junction of Texas Pacific and Southern Pacific railroads” in Sierra Blanca, Hudspeth County, Texas (Schmidly et al., 2023)


Anatomy & Morphology



Biology & Ecology




Holotype: USNM 18256 (skin) / USNM 25159 (skull) (adult female) (Schmidly et al., 2023:78)






Bailey, V. 1915. Revision of the pocket gophers of the genus Thomomys. North American Fauna 39: 1-136.

Schmidly, David J., Bradley, Robert D. and Bradley, Lisa C. (2022). Texas Natural History in the 21st Century. Lubbock: Texas Tech Press.

Schmidly, David J., Bradley, Robert D., Bradley, Lisa C. and Yancey, Franklin D. II (eds.). (2023). Taxonomic Catalogs for the Recent Terrestrial Vertebrates (Species and Subspecies) Described from Texas. Special Publications of the Museum of Texas Tech University 77: iii + 385 pp.


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