Phylum Chordata Bateson, 1885 - chordates
   Subphylum Vertebrata Cuvier, 1812 - vertebrates
     Superclass Homotherma
       1 Class †Pterosauria Kaup, 1834 see Order Pterosauria Kaup, 1834
       2 Class Aves Linnaeus, 1758 - birds see Subclass Aves Linnaeus, 1758
       3 Class Mammalia Linnaeus, 1758 - mammals