Concise hierarchy

(Kingdom) Animalia - (Phylum) Chordata - (Class) Reptilia - (Order) Struthioniformes

Current position

Struthioni (Suborder)

Ref: B.L. Monroe Jr. & C.G. Sibley, 1993: 1. [implicit]

Alternative positions

ratites ([unranked])	Ref: E.C. Dickinson, 2003: [22]. [rough position] [indirect]
Struthiones (Suborder)	Ref: B. Grzimek et al., 1973 (1968): 569.
Struthionides (Infraorder)	Ref: B.L. Monroe Jr. & C.G. Sibley, 1993: 1.
Struthioniformes (Order) Latham, 1790	Ref: B.C. Livezey & R.L. Zusi, 2007: 89.

Historical positions

Struthioniformes (Order) Latham, 1790	Ref: B.C. Livezey & R.L. Zusi, 2007: 89.
ratites ([unranked])	Ref: E.C. Dickinson, 2003: [22], 34. [rough position] [indirect]
Struthioniformes (Order) Latham, 1790	Ref: 1995
Struthionides (Infraorder)	Ref: B.L. Monroe Jr. & C.G. Sibley, 1993: 1.
Struthioniformes (Order) Latham, 1790	Ref: C.M. Perrins, 1991 (1990): 366.
Struthioniformes (Order) Latham, 1790	Ref: R.L. Carroll, 1988: 624.
Struthioniformes (Order) Latham, 1790	Ref: W.J. Bock, 1982: 968.
Struthiones (Suborder)	Ref: E. Mayr & G.W. Cottrell, 1979
Struthiones (Suborder)	Ref: B. Grzimek et al., 1973 (1968): 569.
Struthioniformes (Order) Latham, 1790	Ref: P. Brodkorb, 1963: 196.

Number of Subtaxa

2025	Available in Systema Naturae 2000	1g;1s;4ss; ‡1ss
1989-present	Systema Naturae 2000	1g;1s;[4ss; ‡1ss]
2003	E.C. Dickinson: [22], 34	1g;1s;[4ss; ‡1ss]
2000		1g2s
1993	B.L. Monroe Jr. & C.G. Sibley	1g;1s
1991 (1990)	C.M. Perrins	[1g;1s]
1982	W.J. Bock	1g;1s
1979	E. Mayr & G.W. Cottrell	1g1s5ss
1973 (1968)	B. Grzimek et al.	1g1s4ss; †8s1ss