Concise hierarchy

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

Phylogeny

Paraphyletic/Ancestral (para)

Ref: H.-P. Schultze et al., 1985: [1]. [implicit]

Current position

Lepidosauromorpha (Infraclass) Benton, 1983

Ref: R.L. Carroll, 1988: App. (p. 616).

Alternative positions

Holaspida (Superorder)	Ref: [Anonymous], 1989
Lepidosauria (Superorder) Haeckel, 1866	Ref: H.-P. Schultze et al., 1985: [1].
Lepidosauria (Subclass) Duméril & Bibron, 1839	Ref: A.S. Romer & T.S. Parsons, 1986: App. 1 (p. 622).
Reptilia (Class) Linnaeus, 1758	Ref: T. Rees, 2006-present: [5 Jun 2025]; IRMNG[5 Jun 2025].

Historical positions

Lepidosauria (Subclass) Duméril & Bibron, 1839	Ref: 1998
Lepidosauria (Subclass) Duméril & Bibron, 1839	Ref: P. Uetz, [1995-]1996: 30 Dec 1996.
Lepidosauria (Subclass) Duméril & Bibron, 1839	Ref: 1995
Diapsida (Subclass) Osborn, 1903	Ref: B. Gardiner et al., 1989: 302.
Lepidosauromorpha (Infraclass) Benton, 1983	Ref: R.L. Carroll, 1988: App. (p. 616).
Lepidosauria (Subclass) Duméril & Bibron, 1839	Ref: A.S. Romer & T.S. Parsons, 1986: App. 1 (p. 622).
Lepidosauria (Superorder) Haeckel, 1866	Ref: H.-P. Schultze et al., 1985: [1], 30.
Lepidosauria (Subclass) Duméril & Bibron, 1839	Ref: T.I. Storer et al., 1979
Lepidosauria (Subclass) Duméril & Bibron, 1839	Ref: B. Grzimek et al., 1973 (1971): 597.

Number of Subtaxa

2026	Available in Systema Naturae 2000	†3f;2g
[1995-]1996	P. Uetz: 30 Dec 1996	[; †8f]
1988	R.L. Carroll: 616	[; †4f]
1973 (1971)	B. Grzimek et al.: 598	[; †8f]