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 Reptilia Linnaeus, 1758 - reptiles
               Subclass Archosauria Cope, 1869 see Division Archosauria Cope, 1869
                 Order †Thecodontia Owen, 1859 see Division Archosauria Cope, 1869
                   Suborder †Pseudosuchia Zittel, 1887-1890
                     Family †Rauisuchidae Huene, 1942
                       Genus †Chasmatosaurus Haughton, 1924 see Genus Proterosuchus Broom, 1903