Phylum Chordata Bateson, 1885 - chordates
Count: -
   Subphylum Vertebrata Cuvier, 1812 - vertebrates see Infraphylum Vertebrata Lamarck, 1801
  Count: -
     Class Reptilia Linnaeus, 1758 - reptiles
    Count: [*] 4o42f; †13o36f
       Subclass Archosauria Cope, 1869 see Division Archosauria Cope, 1869
      Count: [*] 1o1f; †4o4f
         Order †Saurischia Seeley, 1887 see Clade Saurischia Seeley 1888 [Gauthier, Langer, Novas, Bittencourt & Ezcurra 2020]
        Count: -
           1 Suborder †Theropoda Marsh, 1881 see Clade Theropoda Marsh 1881 [Naish, Cau, Holtz Jr., Fabbri & Gauthier 2020]
          Count: -
           2 Suborder †Sauropodomorpha Huene, 1932 see Order Sauropodomorpha Huene, 1932
          Count: -