Concise hierarchy

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

Current position

†Tanystrophaea (Order) Romer, 1933

Ref: T.L. Ford, 2005-present: [16 Jun 2026]; [Ezcurra et al., 2020: ext. data fig. 4]. [implicit]

Alternative positions

Archosauromorpha (Clade) von Huene 1946 [Gauthier 2020]	Ref: R.L. Carroll, 1988: App. (p. 619); Ezcurra, 2016: fig. 57; Ezcurra et al., 2020: ext. data fig. 4. [indirect]
†Protorosauria (Order) Huxley, 1871	Ref: R.L. Carroll, 1988: App. (p. 619).
†Protorosaurida (Suborder)	Ref: B. Grzimek et al., 1973 (1971): 597.
†Tanysitracheloidea (Suborder) Peyer, 1931	Ref: O. Kuhn, 1969: 71.
†Tanystropheidea (Superfamily) Ford, orth. inval.	Ref: T.L. Ford, 2005-present: [16 Jun 2026]; Paleofile[16 Jun 2026].
†Tanystropheoidea (Superfamily) Gervais, 1858	Ref: T.L. Ford, 2005-present: [16 Jun 2026]; [Ezcurra et al., 2020: ext. data fig. 4]. [implicit]

Historical positions

†Protorosaurida (Suborder)	Ref: P. Uetz, [1995-]1996: 30 Dec 1996.
†Protorosauria (Order) Huxley, 1871	Ref: B. Gardiner et al., 1989: 302.
†Protorosauria (Order) Huxley, 1871	Ref: R.L. Carroll, 1988: App. (p. 619).
†Protorosaurida (Suborder)	Ref: B. Grzimek et al., 1973 (1971): 597.
†Tanysitracheloidea (Suborder) Peyer, 1931	Ref: O. Kuhn, 1969: 71.

Number of Subtaxa

2026	Available in Systema Naturae 2000	†13g;6s
1989-present	Systema Naturae 2000: 16 Jun 2026	[; †13g]
1988	R.L. Carroll: 619	[; †2g]