Phylogeny

Crown clade

Ref: J. Gauthier et al., 1988c: 181. [inferred]

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

Crocodylus niloticus Laurenti, 1768		Ref: S.P. Modesto & J.S. Anderson, 2004: 819.
Lacerta agilis Linnaeus, 1758		Ref: S.P. Modesto & J.S. Anderson, 2004: 819.

Defined by excluded taxon

Homo sapiens Linnaeus, 1758

Ref: S.P. Modesto & J.S. Anderson, 2004: 819.

Included, by definition, in node-based clade

Amniota (Clade) Haeckel, 1866 [Gauthier, Kluge & Rowe 1988]

Ref: J. Gauthier et al., 1988b: 141 ("reptiles").

Excluded, by definition, from branch-based clade

Mammaliaformes (Clade) Rowe 1988

Ref: M.A. O'Leary et al., 2004: 494 ("sensu Gauthier et al. 1988").

Original entries

Sauria (Clade) McCartney 1802 [Gauthier, Kluge & Rowe 1988], nom. cl. inval.

Ref: J. Gauthier et al., 1988c: 181.

Current position

Amniota (Clade) Haeckel, 1866 [Gauthier, Kluge & Rowe 1988]

Ref: R.V. Hill, 2005: fig. 5.

Historical positions

Amniota (Clade) Haeckel, 1866 [Gauthier, Kluge & Rowe 1988]	Ref: J.S. Nelson, 2006: 467.
Amniota (Clade) Haeckel, 1866 [Gauthier, Kluge & Rowe 1988]	Ref: R.V. Hill, 2005: fig. 5.
Amniota (Clade) Haeckel, 1866 [Gauthier, Kluge & Rowe 1988]	Ref: T. Rowe, 1988: fig. 1.

Number of Subtaxa

1989-present	Systema Naturae 2000	[4c;35o;267f;3145g;17,872s]
2016	P. Uetz et al.: 3 Oct 2016 (Aug 2016)	10,450s
2007-2010	P. Uetz: 3 Oct 2016 (Feb 2008)	8,734s