Geomyidae Bonaparte, 1845

James L. Patton, 1993, Order Rodentia - Family Geomyidae, Mammal Species of the World (2 nd Edition), Washington and London: Smithsonian Institution Press, pp. 469-476 : 469

Family Geomyidae Bonaparte, 1845 . Cat. Meth. Mamm. Europe, p. 5.

COMMENTS: Revised by Russell (1968a), who placed all Recent genera in one of two tribes in the subfamily Geomyinae : Geomyini ( Geomys , Pappogeomys , Orthogeomys , and Zygogeomys ) and Thomomyini ( Thomomys ); he included Macrogeomys and Heterogeomys as subgenera of Orthogeomys, an action followed by more recent authors ( Hall, 1981; Hafner, 1982, 1991), and Cratogeomys as a subgenus of Pappogeomys (see also Russell, 19686). The latter action was accepted by Hall (1981) but not by Jones et al. (1986), Lee and Baker (1987), Davidow-Henry et al. (1989), and Hollander (1990), who considered Cratogeomys as a separate genus. Platygeomys Merriam was synonymized with Pappogeomys by Hooper (1946). Phallic morphology has been reviewed by Williams (19826); Hafner (1982) reported on phylogenetic relationships based on biochemical characters; and Wahlert (1985) provided a classification of the superfamily Geomyoidea, including Geomyidae. Russell (1968a) and Hall (1981) provided keys to Recent genera. Specific boundaries within all pocket gopher genera are often difficult to define because of an apparent inability to subdivide the subterranean niche and thus resultant allopatric distribution patterns (see Patton, 1990).