Evolution and Classification of the Pocket Gophers of the Subfamily Geomyinae

by Robert J. Russell

1957. Medial Pleistocene fossil vertebrate localities in Nebraska. Univ. Nebraska State Mus., 4(4):59-81, September.

Schultz, G. E.

1965. Pleistocene vertebrates from the Butler Springs local fauna, Meade County, Kansas. Papers Michigan Acad. Sci., Arts, and Letters, 50:235-265.

Schultz, J. R.

1938. A late Quaternary mammal fauna from the tar seeps of McKittrick, California. Carnegie Inst. Washington Publ., 487:111-215, July 6.

Shotwell, J. A.

1956. Hemphillian mammalian assemblage from northeastern Oregon. Bull. Geol. Soc. Amer., 67:717-738, 7 figs., June.

1963. The Juntura Basin: studies in earth history and paleoecology. Mammalian fauna of the Drewsey Formation, Bartlett Mountains, Drinkwater and Otis Basin local faunas. Trans. Amer. Phil. Soc., n.s., 53(1):1-77, April.

Simpson, G. G.