Class Mammalia Linnaeus, 1758 - mammals
Order Rodentia Bowdich, 1821 - rodents
Suborder Sciurognathi (Tullberg, 1899)
see Suborder Sciuromorpha Brandt, 1855
Family Geomyidae Bonaparte, 1845 - pocket gophers
1 Genus Geomys Rafinesque, 1817 - eastern pocket gophers
2 Genus Orthogeomys Merriam, 1895 - taltuzas
3 Genus Pappogeomys Merriam, 1895 - Alcorn's and Buller's pocket gophers
4 Genus Thomomys Wied-Neuwied, 1839 - western pocket gophers
5 Genus Zygogeomys Merriam, 1895 - tuza