Concise hierarchy

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

Subsequent positions

Carinatae (Infraclass) Merrem, 1813

Ref: P. Brodkorb, 1971: 238. [assumed]

Original entries

Hemiprocni (Suborder) B.C. Livezey & R.L. Zusi, 2007

Current position

Cypselomorphae (Superorder) Huxley, 1867

Ref: B.C. Livezey & R.L. Zusi, 2007: 94.

Alternative positions

Apodimorphae (Superorder)	Ref: B.L. Monroe Jr. & C.G. Sibley, 1993: 60.
Carinatae (Infraclass) Merrem, 1813	Ref: P. Brodkorb, 1971: 238. [new position]
Neognathae (Superorder) Pycraft, 1900	Ref: R.L. Carroll, 1988: 625.
Neornithes (Subclass) Gadow, 1893	Ref: B. Grzimek et al., 1975 (1969): 580.
unnamed (Superorder)	Ref: M.J. Benton, 2005: 399.

Historical positions

Cypselomorphae (Superorder) Huxley, 1867	Ref: B.C. Livezey & R.L. Zusi, 2007: 94.
unnamed (Superorder)	Ref: M.J. Benton, 2005: 399, box 9.4.
Neoaves (Clade) Sibley et al. 1988	Ref: J. Cracraft et al., 2003: 18. [inferred rank]
Aves (Class) Linnaeus, 1758	Ref: 1995
Apodimorphae (Superorder)	Ref: B.L. Monroe Jr. & C.G. Sibley, 1993: 60.
Neognathae (Superorder) Pycraft, 1900	Ref: C.M. Perrins, 1991 (1990): 21, 380.
Neognathae (Superorder) Pycraft, 1900	Ref: R.L. Carroll, 1988: 625.
Neognathae (Superorder) Pycraft, 1900	Ref: W.J. Bock, 1982: 991.
Neornithes (Subclass) Gadow, 1893	Ref: B. Grzimek et al., 1975 (1969): 580.
Carinatae (Infraclass) Merrem, 1813	Ref: P. Brodkorb, 1971: 238. [new position]

Number of Subtaxa

2024	Available in Systema Naturae 2000	3f;124g;426s;152ss; ‡4s; †3f;3g;1s
1989-present	Systema Naturae 2000	3f;124g;426s; ‡4s
2007	B.C. Livezey & R.L. Zusi	[3f]
2003	J. Cracraft et al.	[3f;124g;425s; ‡4s]
1993	B.L. Monroe Jr. & C.G. Sibley	[2f];19g;103s
1991 (1990)	C.M. Perrins	429s
1990		2f
1988	R.L. Carroll: 625	[2f; †1f]
1982	W.J. Bock	2so;3f
1971	P. Brodkorb	[; †1g]