Concise hierarchy

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

Included, by definition, in node-based clade

Archosauriformes (Clade) Gauthier 1994, nom. cl. inval.

Ref: J.A. Gauthier, 1994: 148.

Current position

†Proterosuchia (Order) Broom, 1906

Ref: G. Olshevsky, 1991: 37; Paleofile[19 Jun 2026].

Alternative positions

Archosauria (Division) Cope, 1869	Ref: M.J. Benton, 2005: 396.
†Proterosuchia (Suborder) Broom, 1906	Ref: R.L. Carroll, 1988: App. (p. 619).

Historical positions

Archosauriformes (Clade) Gauthier 1994 [Gauthier 2020]	Ref: M.D. Ezcurra et al., 2020: ext. data fig. 4.
Archosauria (Division) Cope, 1869	Ref: M.J. Benton, 2005: 396, box 6.1.
†Proterosuchia (Order) Broom, 1906	Ref: G. Olshevsky, 1991: 37.
Archosauria ([unranked]) Cope, 1869	Ref: M.J. Benton, 1990: fig. 1.1.
†Proterosuchia (Suborder) Broom, 1906	Ref: B. Gardiner et al., 1989: 302.
†Proterosuchia (Suborder) Broom, 1906	Ref: R.L. Carroll, 1988: App. (p. 619).
†Proterosuchia (Suborder) Broom, 1906	Ref: B. Grzimek et al., 1973 (1971): 593.

Number of Subtaxa

2026	Available in Systema Naturae 2000	†11g;2s;1
1989-present	Systema Naturae 2000: 20 Jun 2026	[; †11g]
1991	G. Olshevsky: 37	†8g;10s
1988	R.L. Carroll: 619	[; †6g]