Struthioniformes
Struthioniformes sunt ordo magnarum avium volatu carentium, in superordine Palaeognathis contentus, cuius genus notissimum est Struthio, unde nomen provenuit. Struthioniformes in sterno carinam non habent, ergo aliud harum avium nomen est Ratites (ex vocabulo rate). Aliqui struthioniformes et ratites synonyma habent, sed taxinomia adhuc disputatur.

Bibliographia
 Brands, Sheila. 2008. "Taxon: Genus Struthio." Project: The Taxonomicon. Editio interretialis.
 Hackett, S. J., et al. 2008. "A Phylogenomic Study of Birds Reveals Their Evolutionary History." Science 320: 1763.

Aves sine volatu
Struthioniformes
Taxa Latham
Taxa 1790