Class [Mammalia] Linnaeus, 1758 - mammals
   Order Rodentia Bowdich, 1821 - rodents
     Family Geomyidae Bonaparte, 1845 - pocket gophers
       Genus Orthogeomys Merriam, 1895 - taltuzas
         01 Orthogeomys cavator (Bangs), 1902 - Chiriqui pocket gopher
         02 Orthogeomys cherriei (J. A. Allen), 1893 - Cherrie's pocket gopher
         03 Orthogeomys cuniculus Elliot, 1905 - Oaxacan pocket gopher
         04 Orthogeomys dariensis (Goldman), 1912 - Darien pocket gopher
         05 Orthogeomys grandis (Thomas, 1893) - large pocket gopher
         06 Orthogeomys heterodus (Peters), 1865 - variable pocket gopher
         07 Orthogeomys hispidus (Le Conte), 1852 - hispid pocket gopher
         08 Orthogeomys lanius (Elliot), 1905 - big pocket gopher
         09 Orthogeomys matagalpae (J. A. Allen), 1910 - Nicaraguan pocket gopher
         10 Orthogeomys pygacanthis - El Salvador pocket gopher see Orthogeomys grandis (Thomas, 1893)
         11 Orthogeomys underwoodi (Osgood), 1931 - Underwood's pocket gopher