Concise hierarchy

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

Current position

Pan-Lepidosauria (Clade) Gauthier & de Queiroz 2020

Ref: S.B. Hedges & N. Vidal, 2009: (383); de Queiroz & Gauthier, 2020: [1079]; Benton, 2015: box 6.1 (p. 151). [inferred]

Alternative positions

Eusauropsida (Class)	Ref: L.B. Halstead, 1974: 171.
Reptilia (Class) Linnaeus, 1758	Ref: A.S. Romer & T.S. Parsons, 1986: App. 1 (p. 622).

Historical positions

Reptilia (Class) Linnaeus, 1758	Ref: 1998
Reptilia (Class) Linnaeus, 1758	Ref: P. Uetz, [1995-]1996: 30 Dec 1996.
Reptilia (Class) Linnaeus, 1758	Ref: 1995
Reptilia (Class) Linnaeus, 1758	Ref: A.S. Romer & T.S. Parsons, 1986: App. 1 (p. 622).
Reptilia (Class) Linnaeus, 1758	Ref: W.E. Duellman, 1982: 958; 955.
Reptilia (Class) Linnaeus, 1758	Ref: T.I. Storer et al., 1979
Reptilia (Class) Linnaeus, 1758	Ref: B. Grzimek et al., 1973 (1971): 597.
Eusauropsida (Class)	Ref: L.B. Halstead, 1974: 171.
Eusauropsida (Class)	Ref: L.B. Halstead, 1969: 101.
Reptilia (Class) Linnaeus, 1758	Ref: E.R. Lankester, 1877: 452.
Reptilia (Class) Linnaeus, 1758	Ref: O. Kuhn, 1969: 28.

Number of Subtaxa

2025	Available in Systema Naturae 2000	2o;82f;1091g;10,075s;387ss;1; ‡1g;6s; †28f;78g;52s
1989-present	Systema Naturae 2000	2o;[34f;>5600s]
[1995-]1996	P. Uetz: 30 Dec 1996	[2o;35f; †1o;16f]
1986	A.S. Romer & T.S. Parsons: App. 1 (p. 623)	[2o; †1o]
1982	W.E. Duellman: 958	2o;[34f;>5600s]
1877	E.R. Lankester: 452	[9o]