Class Aves Linnaeus, 1758 - birds
see Subclass Aves Linnaeus, 1758
Subclass Ornithurae Haeckel, 1866
see Clade Ornithurae Haeckel 1866 [Gauthier 1986] {Chiappe 1991}
Infraclass Ratitae (Merrem, 1813) P. Brodkorb, 1963
see Parvclass Ratitae (Merrem, 1813)
Order ‡Aepyornithiformes Newton, 1884
Family ‡Aepyornithidae Bonaparte, 1853 - elephant birds
Subfamily ‡Aepyornithinae Bonaparte, 1853
Genus ‡Aepyornis Geoffroy, 1850