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 Hystricomorpha Brandt, 1855
                     Superfamily Hystricoidea Fischer de Waldheim, 1817
                       Family Hystricidae Fischer de Waldheim, 1817 - Old World porcupines
                         Genus Thecurus Lyon, 1907 see Genus Hystrix Linnaeus, 1758
                           Thecurus crassispinis (Günther, 1876) see Hystrix crassispinis (Günther, 1877)