Concise hierarchy

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

Phylogeny

Node-based clade

Ref: P.C. Sereno, 2005: tables.php [8 Mar 2016].

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

Crocodylus niloticus Laurenti, 1768		Ref: P.C. Sereno, 2005: tables.php [8 Mar 2016].
Passer domesticus (Linnaeus, 1758)		Ref: P.C. Sereno, 2005: tables.php [8 Mar 2016].

Generic clade

Archosauria (Clade) Cope 1869 [Gauthier & Padian 1985], nom. cl. inval.

Ref: P.C. Sereno, 2005: tables.php [8 Mar 2016].

Current position

Crurotarsi (Clade) Sereno & Arcucci 1990

Ref: S.J. Nesbitt, 2011: 193.

Alternative positions

Archosauromorpha (Clade) Huene 1946 [Benton 1985], nom. cl. inval.	Ref: M.J. Benton, 2004: figs. 1.2, 1.8A [Benton, 2015: box 6.1].
Sauria (Clade) McCartney 1802 [Gauthier, Kluge & Rowe 1988], nom. cl. inval.	Ref: R.V. Hill, 2005: fig. 5.

Historical positions

Archosauromorpha (Clade) Huene 1946 [Benton 1985], nom. cl. inval.	Src: C.F. Kammerer et al., 2012(2011): 278, 282 (fig. 4). [indirect]
Crurotarsi (Clade) Sereno & Arcucci 1990	Src: S.J. Nesbitt, 2011: 193-194, fig. 51.
Tetrapoda (Clade) Hatschek & Cori 1896 [Gauthier, Kluge & Rowe 1988], nom. cl. inval.	Src: N. Iwabe et al., 2005: fig. 1c. [indirect]
Sauria (Clade) McCartney 1802 [Gauthier, Kluge & Rowe 1988], nom. cl. inval.	Src: R.V. Hill, 2005: fig. 5.
Sauria (Clade) McCartney 1802 [Gauthier, Kluge & Rowe 1988], nom. cl. inval.	Src: T. Rowe, 1988: fig. 1.

Number of Subtaxa

2025	Available in Systema Naturae 2000	†1g;1s
1989-present	Systema Naturae 2000	[2c;32o;204f;2143g;9632s]