Class Mammalia Linnaeus, 1758 - mammals
   Order Rodentia Bowdich, 1821 - rodents
     Suborder Hystricognathi Tullberg, 1899 see Infraorder Hystricognathi Tullberg, 1899
       Family Echimyidae Gray, 1825 - spiny rats
         Subfamily Dactylomyinae Tate, 1935
           Genus Dactylomys Geoffroy Saint-Hilaire, 1838 - coro-coros
             1 Dactylomys boliviensis Anthony, 1920
             2 Dactylomys dactylinus (Desmarest, 1817)
             3 Dactylomys peruanus J.A. Allen, 1900