Concise hierarchy

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

Phylogeny

Branch-based clade

Ref: J. Gauthier et al., 1988a: 27. [implicit]

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

Sphenodon (Genus) Gray, 1831		Ref: J. Gauthier et al., 1988a: 27.
Squamata (Clade) Oppel 1811 [Gauthier, Estes & de Queiroz 1988], nom. cl. inval.		Ref: J. Gauthier et al., 1988a: 27 ("squamates").

Defined by excluded taxon

Aves (Clade) Linnaeus 1758 [Gauthier 1986], nom. cl. inval.		Ref: J. Gauthier et al., 1988a: 27 ("birds").
Crocodylia (Clade) Gmelin 1789 [Clark 1988]		Ref: J. Gauthier et al., 1988a: 27 ("crocodiles").

Node-based clade

Lepidosauromorpha (Clade) Benton 1983 [Benton 1985]

Ref: M. Laurin, 1991: 89.

Current position

Diapsida (Clade) Osborn 1903 [Laurin 1991]

Ref: J.S. Nelson, 2006: 467.

Alternative positions

Neodiapsida (Clade) Benton 1985	Ref: M.J. Benton, 2004: fig. 1.2. [out of scope (coherent)]
Sauria (Clade) McCartney 1802 [Gauthier, Kluge & Rowe 1988], nom. cl. inval.	Ref: R.R. Reisz et al., 2011: fig. 4.

Historical positions

reptiles (Clade) Linnaeus 1758 [Laurin & Reisz 2020]	Ref: M.D. Ezcurra et al., 2020: ext. data fig. 4.
Diapsida (Clade) Osborn 1903 [Laurin 1991]	Ref: J.S. Nelson, 2006: 467.
Neodiapsida (Clade) Benton 1985	Ref: M.J. Benton, 2004: fig. 1.2. [out of scope (coherent)]
Sauria (Clade) McCartney 1802 [Gauthier, Kluge & Rowe 1988], nom. cl. inval.	Ref: M. Laurin, 1991: 83, 89-90, fig. 11. [emended diagnosis]
Diapsida (Clade) Osborn 1903 [Laurin 1991]	Ref: M.J. Benton, 1990: fig. 1.1.

Number of Subtaxa

1989-present

Systema Naturae 2000: 25 Feb 2017

[1c;2o;82f;1091g;10,075s; †1c;3o]