Ostrich (family)

Struthionidae is a family of flightless ratite birds which first appeared during the Eocene epoch. It is today represented by the sole living genus Struthio, but also contains several extinct genera. Traditionally the order Struthioniformes contained the world's ratites, but recent genetic analysis has found that the group is not monophletyic, as it paraphyletic in respect to the tinamous.

Taxonomy
Struthionidae (ostriches)
 * †Palaeotis weigelti Lambrecht 1928 [Palaeogrus geiseltalensis Lambrecht 1935 ; Ornitocnemus geiseltalensis (Lambrecht 1935) Brodkorb 1967 ] (middle Eocene)
 * †Orientornis linxiaensis (Hou et al. 2005) Wang 2008 [Struthio linxiaensis Hou et al. 2005 ]
 * Struthio Linnaeus 1758 [Palaeostruthio Burchak-Abramovich 1953 ; Struthiolithus Brandt 1873 ; (Pachystruthio) Kretzoi 1954a ] (Early Miocene – Recent)
 * †S. anderssoni Lowe 1931 [ootaxa]
 * †S. chersonensis Brandt 1873 [Struthiolithus chersonensis Brandt 1873 [ootaxa] ; Struthio novorossicus Alekseev 1916 ; Struthio brachydactylus Burchak-Abramovich 1949 ; Palaeostruthio sternatus Burchak-Abramovich 1953 ; Struthio (Pachystruthio) pannonicus Kretzoi 1954a ; Struthiolithus alexejevi Roščin, 1962 [ootaxa] ; Struthiolithus adzalycensis Roščin, 1962 [ootaxa] ; Struthio orlovi Kuročkin & Lungo 1970 ]
 * †S. daberasensis Pickford, Senut & Dauphin 1995 [Struthiolithus chersonensis Brandt 1873 [ootaxa] ]
 * †S. kakesiensis Harrison & Msuya 2005 [ootaxa]
 * †S. karingarabensis Senut, Dauphin & Pickford 1998 [ootaxa]
 * †S. mongolicus [ootaxa] (Inner Mongolia)
 * †S. asiaticus Brodkorb 1863 [Struthio indicus (Bidwell 1910) ] (Asian Ostrich)
 * †S. coppensi Mourer-Chauviré et al. 1996
 * †S. dmanisensis Burchak-Abramovich & Vekua 1990
 * †S. karatheodoris Forsyth Major 1888
 * †S. oldawayi Lowe 1933
 * †S. wimani Lowe 1931
 * †S. transcaucasicus Burchak-Abramovich & Vekua 1971
 * S. molybdophanes Reichenow 1883 [Struthio camelus molybdophanes Reichenow 1883 ] (Somali Ostrich)
 * S. camelus Linnaeus 1758 [Avis struthio]
 * S. c. australis (Gurney 1868) [Struthio australis Gurney 1868 ; Struthio camelus meridionalis] (South African Ostrich)
 * †S. c. syriacus Rothschild 1919 (Arabian Ostrich)
 * S. c. camelus Linnaeus 1758 [Struthio camelus rothschildi Grant & Mackworth-Praed 1951 ] (North African Ostrich)
 * S. c. massaicus (Neumann 1898) [Struthio massaicus Neumann 1898 ] (Masai Ostrich)