Phylum Chordata Bateson, 1885 - chordates
   Class Aves Linnaeus, 1758 - birds see Subclass Aves Linnaeus, 1758
     Subclass Neornithes Gadow, 1893 see Clade Neornithes Gadow, 1893
       Superorder Palaeognathae Pycraft, 1900 see Cohort Palaeognathae Pycraft, 1900
         Order Struthioniformes Latham, 1790
           Family Struthionidae Batsch, 1788 - ostriches
             Genus Struthio Linnaeus, 1758
               Struthio camelus Linnaeus, 1758 - ostrich