Kingdom [Animalia] Linnaeus, 1758 - animals
   Subkingdom Metazoa Haeckel, 1874 see Kingdom Animalia Linnaeus, 1758
     Division Eumetazoa Butschli, 1910 see Subkingdom Eumetazoa Butschli, 1910
       Subdivision Bilateralia
         Phylum Chordata Bateson, 1885 - chordates
           Subphylum Vertebrata Cuvier, 1812 - vertebrates
             Class Mammalia Linnaeus, 1758 - mammals
               Subclass Eutheria Gill, 1872 see Infraclass Eutheria Gill, 1872
                 Order Rodentia Bowdich, 1821 - rodents
                   Suborder Caviomorpha Wood & Patterson, 1955 see Parvorder Caviomorpha Wood & Patterson, 1955
                     Superfamily Octodontoidea Waterhouse, 1839
                       Family Echimyidae Gray, 1825 - spiny rats
                         Subfamily Echimyinae Gray, 1825
                           0.1.0 Genus Cercomys Cuvier, 1829 see Genus Thrichomys Trouessart, 1881
                           0.2.0 Genus Proëchimys see Genus Proechimys Allen, 1899
                           0.3 Genus Euryzygomatomys Goeldi, 1901 - guiara
                           0.4 Genus Carterodon Waterhouse, 1848
                           0.5 Genus Clyomys Thomas, 1916
                           0.6.0 Genus Lonchotrix see Genus Lonchothrix Thomas, 1920
                           0.7 Genus Hoplomys Allen, 1908 - armored rat
                           0.8 Genus Mesomys Wagner, 1845
                           1 Genus Echimys Cuvier, 1809 - arboreal spiny rats
                           2 Genus Isothrix Wagner, 1845 - toros
                           3 Genus Diplomys Thomas, 1916