Class Aves Linnaeus, 1758 - birds see Subclass Aves Linnaeus, 1758
   Subclass Neornithes Gadow, 1893 see Clade Neornithes Gadow, 1893
     Infraclass Eoaves Sibley et al., 1988 see Cohort Palaeognathae Pycraft, 1900
       Parvclass Ratitae (Merrem, 1813) see Subcohort Ratitae Merrem, 1813
         Order Struthioniformes Latham, 1790
           Suborder Struthioni
             Infraorder Struthionides see Suborder Struthioni
               Family Struthionidae Batsch, 1788 - ostriches
                 Genus Struthio Linnaeus, 1758
                   Struthio camelus Linnaeus, 1758 - ostrich
                     1 Struthio camelus camelusᵀ Linnaeus, 1758 - African ostrich
                     2 Struthio camelus molybdophanes Reichenow, 1883 - Somali ostrich