Concise hierarchy

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

Current position

†Ichthyopterygia (Subclass) Blainville, 1835

Ref: Arkhangelsky, in Ivakhnenko & Kurochkin (eds.), 2008: 248

Alternative positions

†Euryapsida (Subclass) Colbert, 1945	Ref: A.S. Romer & T.S. Parsons, 1986: App. 1 (p. 623).
†Ichthyopterygia (Superorder) Owen, 1840	Ref: R.L. Sissons et al., 2016: 35.
†Ichthyopterygia (Class) Blainville, 1835	Ref: R.L. Carroll, 1988 [implicit]
†Parapsida (Subclass) (Williston, 1925)	Ref: P. Uetz, [1995-]1996: 30 Dec 1996.
Reptilia (Class) Linnaeus, 1758	Ref: T. Rees, 2006-present: [5 Jun 2025]; IRMNG[5 Jun 2025].
Reptilia (Class) Linnaeus, 1758	Ref: J.J. Sepkoski Jr., 2002: 320.

Historical positions

Reptilia (Class) Linnaeus, 1758	Ref: J.J. Sepkoski Jr., 2002: 320.
†Euryapsida (Subclass) Colbert, 1945	Ref: 1998
†Parapsida (Subclass) (Williston, 1925)	Ref: P. Uetz, [1995-]1996: 30 Dec 1996.
†Euryapsida (Subclass) Colbert, 1945	Ref: 1995
Diapsida (Subclass) Osborn, 1903	Ref: B. Gardiner et al., 1989: 301.
Reptilia (Class) Linnaeus, 1758	Ref: R.L. Carroll, 1988: App. (p. 622). [invalid/synonym] [implicit]
†Euryapsida (Subclass) Colbert, 1945	Ref: A.S. Romer & T.S. Parsons, 1986: App. 1 (p. 623).
†Ichthyopterygia (Subclass) Blainville, 1835	Ref: T.I. Storer et al., 1979
†Ichthyopterygia (Subclass) Blainville, 1835	Ref: B. Grzimek et al., 1973 (1971): 591.

Number of Subtaxa

2026	Available in Systema Naturae 2000	†6f;15g;15s
[1995-]1996	P. Uetz: 30 Dec 1996	[; †5f]
1973 (1971)	B. Grzimek et al.: 592	[; †5f]