Class Mammalia Linnaeus, 1758 - mammals
   Order Rodentia Bowdich, 1821 - rodents
     Suborder Hystricognathi Tullberg, 1899 see Infraorder Hystricognathi Tullberg, 1899
       Family Capromyidae Smith, 1842 - hutias and nutria
         Subfamily ‡Isolobodontinae Woods, 1989 see Family Capromyidae Smith, 1842
           Genus ‡Isolobodon Allen, 1916
             1 ‡Isolobodon montanus (Miller, 1922)
             2 ‡Isolobodon portoricensis Allen, 1916 - Hispaniolan hutia