Concise hierarchy

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

Phylogeny

Branch-based clade

Ref: P.C. Sereno, 1998: table 4 (p. 65).

Defined by included taxon (and all taxa more closely related to it than to the excluded taxon)

Neornithes (Clade) Gadow, 1893

Ref: P.C. Sereno, 1998: table 4 (p. 65).

Defined by excluded taxon

†Archaeopteryx (Genus) Meyer, 1861

Ref: P.C. Sereno, 1998: table 4 (p. 65).

Generic clade

Ornithurae (Clade) Haeckel 1866 [Gauthier 1986] {Chiappe 1991}

Ref: P.C. Sereno, 1998: table 4 (p. 65).

Current position

Ornithuromorpha (Clade) Chiappe 2001

Ref: K. Padian, 2004: fig. 11.8.

Alternative positions

Aves (Clade) Linnaeus 1758 [Gauthier 1986], nom. cl. inval.	Ref: P.C. Sereno, 1998: table 4 (p. 65).
Ornithuromorpha (Subclass) Chiappe, 2002	Ref: J.K. O'Connor et al., 2010: fig. 9.

Historical positions

Ornithuromorpha (Subclass) Chiappe, 2002	Src: J.K. O'Connor et al., 2010: fig. 9.
Ornithuromorpha (Clade) Chiappe 2001	Src: K. Padian, 2004: 225, table 11.1 (p. [214]), fig. 11.8.
Ornithuromorpha (Clade) Chiappe 2001	Src: L.M. Chiappe, 2001: [126] (fig. 1).
Aves (Clade) Linnaeus 1758 [Gauthier 1986], nom. cl. inval.	Src: P.C. Sereno, 1998: table 4 (p. 65), fig. 9B.

Number of Subtaxa

2024	Available in Systema Naturae 2000	31o;202f;2151g;9617s;7150ss;1v; ‡2o;7f;57g;261s;62ss; †10o;67f;291g;98s;3ss
1989-present	Systema Naturae 2000	[31o;201f;2135g;9609s]