Kingdom Animalia Linnaeus, 1758 - animals Phylum Craniata Linnaeus, 1758 see Subphylum Craniata auct. Class Mammalia Linnaeus, 1758 - mammals Subclass Theria Parker & Haswell, 1897 Infraclass Placentalia Owen, 1837 see Cohort Placentalia Owen, 1837 Order Rodentia Bowdich, 1821 - rodents Suborder Castorimorpha Wood, 1955 see Infraorder Castorimorphi Family Geomyidae Bonaparte, 1845 - pocket gophers