Phylum [Vertebrata] Lamarck, 1801 see Infraphylum Vertebrata Lamarck, 1801
   Class Aves Linnaeus, 1758 - birds see Subclass Aves Linnaeus, 1758
     Subclass Neornithes Gadow, 1893 see Clade Neornithes Gadow, 1893
       Order Ciconiiformes Bonaparte, 1854
         Genus †Argentavis Campbell & Tonni, 1980
         Genus †Harpagornis Haast, 1872
         Genus †Limnofregata Olson, 1977
         Genus †Osteodontornis Howard
         Genus †Palaelodus Milne-Edwards, 1863
         Genus †Pinguinus Bonnaterre, 1791