Kingdom [Animalia] Linnaeus, 1758 - animals
   Phylum Chordata Bateson, 1885 - chordates
     Subphylum Vertebrata Cuvier, 1812 - vertebrates
       Class Reptilia Linnaeus, 1758 - reptiles
         Subclass Archosauria Cope, 1869 see Division Archosauria Cope, 1869
           1 Order †Thecodontia Owen, 1859 see Division Archosauria Cope, 1869
           2 Order Crocodilia see Order Crocodylia Wagler, 1830
           3 Order †Pterosauria Kaup, 1834 - pterosaurs
           4 Order †Saurischia Seeley, 1887 see Clade Saurischia Seeley 1888 [Gauthier, Langer, Novas, Bittencourt & Ezcurra 2020]
           5 Order †Ornithischia Seeley, 1887