After Olson, 1985, Feduccia, 1980, 1997, Sibley & Monroe, 1990, and Peterson, 2002-2003
<==o Struthioniformes (ostriches; strutsit) [1 Recent genus and species]
`--o Struthionidae (ostriches; strutsit)
|?- ?†Palaeotis weigelti [Palaeogrus geiseltalensis Lambrecht, 1935] M. Eoc. CEu.
`--o Struthio Linnaeus, 1758 (ostriches; strutsit)
|-- †S. orlovi
|-- †S. brachydactylus
|-- †S. wimani
|-- †S. chersonensis
|-- †S. asiaticus
|-- S. c. molybdophanes Reichenow, 1883 (Masai ostrich; masaistrutsi)
`--o S. camelus Linnaeus, 1758 (Common ostrich; strutsi)
|-- S. c. australis Gurney, 1868 (South African ostrich; eteläafrikanstrutsi)
|-- †S. c. syriacus Rothschild, 1919 (Arabian ostrich; arabianstrutsi)
|-- S. c. camelus Linnaeus, 1758 (afrikanstrutsi)
`-- S. c. massaicus Neumann, 1898 (Rift Valley ostrich; itäafrikanstrutsi)
Reference(s):
- Feduccia, A., 1980: The Age of Birds.
–Harvard University Press, Cambridge, Massachusetts & London, England, 1980, IX-196
- Feduccia, A., 1996: The Origin and Evolution of Birds.
–Yale University Press, Hew Haven, 1996
- Olson, S. L., 1985: The fossil record of birds. 79-239.
in Farner, D., King, J. & Parkes, K. (eds.), 1985: Avian Biology. vol VIII.
–Academic Press, New York. 1985.
- Peterson, A. P., 2002-2011: Struthioniformes
–iNet: Zoonomen Nomenclatural data: http://www.zoonomen.net/avtax/frame.html
- Sibley, C. G. & Monroe, J., BL., 1990: Distribution and taxonomy of birds
of the world.
–Yale University Press, New Haven & London, 1990. XXIV-1111.
