Phylum Chordata Bateson, 1885 - chordates
Count: -
   Subphylum Vertebrata Cuvier, 1812 - vertebrates see Infraphylum Vertebrata Lamarck, 1801
  Count: -
     Class Aves Linnaeus, 1758 - birds see Subclass Aves Linnaeus, 1758
    Count: -
       Order Rheiformes Forbes, 1884 see Suborder Rheae Forbes, 1884
      Count: [*] 1f
         Family Rheidae Bonaparte, 1849 - rheas
        Count: -