Concise hierarchy

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

Phylogeny

Node-based clade		Ref: L. Salgado et al., 1997: 6. [implicit]
Reference phylogeny [PhyloCode]		Ref: L. Salgado et al., 1997: fig. 19. [inferred]

Defined by the most recent common ancestor (and all its descendants) of

†Prosauropoda (Clade) Huene 1920 [Sereno 1998]		Ref: L. Salgado et al., 1997: 6.
†Sauropoda (Clade) Marsh 1878 [Salgado et al. 1997]		Ref: L. Salgado et al., 1997: 6.

Excluded, by definition, from branch-based clade

Theropoda (Clade) Marsh 1881 [Gauthier 1986]

Ref: J. Gauthier, 1986: 18 (as "sauropodomorphs").

Branch-based clade

†Sauropodomorpha (Clade) Huene 1932 [Salgado et al. 1997]		Ref: P.M. Galton & P. Upchurch, 2004: 249.
†Sauropodomorpha (Clade) Huene 1932 [Salgado et al. 1997]		Ref: S.J. Nesbitt, 2011: 214 (sensu Sereno, 2005).
†Sauropodomorpha (Clade) Huene 1932 [Salgado et al. 1997]		Ref: A. Otero et al., 2015: table 1 (p. 590) (Sereno, 2007).

Node-based clade

†Sauropodomorpha (Clade) Huene 1932 [Salgado et al. 1997]

Ref: P.C. Sereno, 1998: table 4 (p. 63).

Current position

Saurischia (Clade) Seeley 1887 [Gauthier 1986], nom. cl. inval.

Ref: S.J. Nesbitt, 2011: 214.

Alternative positions

Eusaurischia (Clade) Padian et al. 1999

Ref: T.R. Holtz Jr. & H. Osmólska, 2004: [21].

Historical positions

Archosauria (Clade) Cope 1869 [Gauthier & Padian 1985], nom. cl. inval.	Ref: R.N. Martínez & C. Apaldetti, 2017: 502 (fig. 11). [rough position] [indirect]
Dinosauria (Clade) Owen 1841 [Padian & May 1993], nom. cl. inval.	Ref: A. Otero et al., 2015: 612 (fig. 17).
Saurischia (Clade) Seeley 1887 [Gauthier 1986], nom. cl. inval.	Ref: S.J. Nesbitt, 2011: 214, fig. 52.
Eusaurischia (Clade) Padian et al. 1999	Ref: S.J. Nesbitt, 2011: fig. 6.
Eusaurischia (Clade) Padian et al. 1999	Ref: P.M. Galton & P. Upchurch, 2004: 249-250, table 12.1 (p. [234]), fig. 12.11; [21], table 13.1, figs. 1.8A, S.1, S.2, 4.20.
Saurischia (Clade) Seeley 1887 [Gauthier 1986], nom. cl. inval.	Ref: P.C. Sereno, 1998: table 4 (p. 63), fig. 4.
Saurischia (Clade) Seeley 1887 [Gauthier 1986], nom. cl. inval.	Ref: M.J. Benton, 1990: fig. 1.5.

Number of Subtaxa

2025

Available in Systema Naturae 2000

†1g