Concise hierarchy

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

Subsequent entries

†Protorosauroidea (Suborder) Kuhn, 1969

Ref: O. Kuhn, 1969: 66.

Current position

Archosauromorpha (Clade) von Huene 1946 [Gauthier 2020]

Ref: T.L. Ford, 2005-present: [17 Jun 2026]; ~Paleofile[17 Jun 2026]; Ezcurra, 2016: fig. 57; Ezcurra et al., 2020: ext. data fig. 4. [implicit]

Alternative positions

Archosauria (Supercohort) Gardner, 1982	Ref: T.L. Ford, 2005-present: [16 Jun 2026]; Paleofile[16 Jun 2026].
Archosauromorpha (Infraclass) Huene, 1946	Ref: D. Lambert & the Diagram Group, 1991(1997): 88.
†Euryapsida (Subclass) Colbert, 1945	Ref: P. Uetz, [1995-]1996: 30 Dec 1996.
Lepidosauria (Subclass) Duméril & Bibron, 1839	Ref: O. Kuhn, 1969: 64.
Reptilia (Class) Linnaeus, 1758	Ref: T. Rees, 2006-present: [5 Jun 2025]; IRMNG[5 Jun 2025].

Historical positions

Archosauromorpha (Infraclass) Huene, 1946	Ref: D. Lambert & the Diagram Group, 1991(1997): 88.
†Euryapsida (Subclass) Colbert, 1945	Ref: P. Uetz, [1995-]1996: 30 Dec 1996.
Archosauromorpha (Infraclass) Huene, 1946	Ref: B. Gardiner et al., 1989: 302.
Archosauromorpha (Infraclass) Huene, 1946	Ref: R.L. Carroll, 1988: App. (p. 619).
Lepidosauria (Subclass) Duméril & Bibron, 1839	Ref: O. Kuhn, 1969: 64.

Number of Subtaxa

2026	Available in Systema Naturae 2000	†1f;3g;2s
1989-present	Systema Naturae 2000: 16 Jun 2026	[; †1f;3g]
1988	R.L. Carroll: 619	[; †3f;12g]
1969	O. Kuhn: 71	[; †4f]