Concise hierarchy

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

Subsequent positions

Casuariimorphae (Superorder) B.C. Livezey & R.L. Zusi, 2007		Ref: B.C. Livezey & R.L. Zusi, 2007: 89. [assumed]
Ratitae (Infraclass) (Merrem, 1813) P. Brodkorb, 1963		Ref: P. Brodkorb, 1963: 202. [assumed]

Current position

Casuariimorphae (Superorder) B.C. Livezey & R.L. Zusi, 2007

Ref: B.C. Livezey & R.L. Zusi, 2007: 89. [new position]

Alternative positions

Palaeognathae (Superorder) Pycraft, 1900	Ref: R.L. Carroll, 1988: 624.
Ratitae (Infraclass) (Merrem, 1813) P. Brodkorb, 1963	Ref: P. Brodkorb, 1963: 202. [new position]

Historical positions

Casuariimorphae (Superorder) B.C. Livezey & R.L. Zusi, 2007	Ref: B.C. Livezey & R.L. Zusi, 2007: 89. [new position]
Aves (Class) Linnaeus, 1758	Ref: 1995
Palaeognathae (Superorder) Pycraft, 1900	Ref: C.M. Perrins, 1991 (1990): 19, 366.
Palaeognathae (Superorder) Pycraft, 1900	Ref: R.L. Carroll, 1988: 624.
Palaeognathae (Superorder) Pycraft, 1900	Ref: W.J. Bock, 1982: 968.
Neognathae (Superorder) Pycraft, 1900	Ref: T.I. Storer et al., 1979
Ratitae (Infraclass) (Merrem, 1813) P. Brodkorb, 1963	Ref: P. Brodkorb, 1963: 202. [new position]

Number of Subtaxa

2024	Available in Systema Naturae 2000	2f;2g;4s;2ss; ‡2s;1ss
1989-present	Systema Naturae 2000	[2f;2g;4s;2ss; ‡2s;1ss]
2007	B.C. Livezey & R.L. Zusi	[2f]
1991 (1990)	C.M. Perrins	[2f;2g];6s
1988	R.L. Carroll: 624	[2f; ‡1f]
1982	W.J. Bock	2f;[2g;4s; ‡1s]
1963	P. Brodkorb	[; †1f;2g]