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)

†Sinornis (Genus) Sereno & Rao, 1992

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

Defined by excluded taxon

Neornithes (Clade) Gadow, 1893

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

Generic clade

†Enantiornithes (Clade) Walker 1981 [Sereno 1998]

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

Current position

Ornithothoraces (Clade) Chiappe 1995

Ref: J.K. O'Connor et al., 2010: fig. 9.

Historical positions

Ornithothoraces (Clade) Chiappe 1995	Src: J.K. O'Connor et al., 2010: fig. 9.
Ornithothoraces (Clade) Chiappe 1995	Src: K. Padian, 2004: table 11.1 (p. [212]), fig. 11.8.
Ornithothoraces (Clade) Chiappe 1995	Src: L.M. Chiappe, 2001: [126] (fig. 1).
Ornithothoraces (Clade) Chiappe 1995	Src: P.C. Sereno, 1998: table 4 (p. 65), fig. 9B.

Number of Subtaxa

1989-present	Systema Naturae 2000	[; †26g;30s]
2004	K. Padian	[; †26g;30s]