Concise hierarchy

(Kingdom) Animalia - (Phylum) Chordata - (Class) Amphibia - (Order) Caudata

Subsequent positions

Treptobranchia ([unranked]) D.R. Frost et al., 2006

Ref: D.R. Frost et al., 2006: 174. [assumed]

Subsequent entries

Ambystoma (Genus) Tschudi, 1838

Current position

Treptobranchia ([unranked]) D.R. Frost et al., 2006

Ref: D.R. Frost et al., 2006: 174. [new position]

Alternative positions

Ambystomatoidea (Suborder)	Ref: R.L. Carroll, 1988: 614.
Caudata (Order) Scopoli, 1777	Ref: D.R. Frost, 2010: 22 Nov 2010.
Cryptobranchoidea (Suborder) Dunn, 1922	Ref: H.-P. Schultze et al., 1985: [1].
Urodela (Order) Dumeril, 1806	Ref: D.R. Frost, 2004: 23 Apr 2006.

Historical positions

Treptobranchia ([unranked]) D.R. Frost et al., 2006	Ref: D.R. Frost et al., 2006: 174; 151. [new position]
Ambystomatoidea (Suborder)	Ref: R.L. Carroll, 1988: 614.
Cryptobranchoidea (Suborder) Dunn, 1922	Ref: H.-P. Schultze et al., 1985: [1], 16.
Ambystomatoidea (Suborder)	Ref: W.E. Duellman, 1982: 947.
Amphibia (Class) Linnaeus, 1758	Ref: L. Margulis & K.V. Schwartz, 1982: 236.
Salamandroidea (Suborder) Sarasin, 1890	Ref: B. Grzimek, 1973-1975

Number of Subtaxa

2025	Available in Systema Naturae 2000	2g;37s;10ss; †1s
1989-present	Systema Naturae 2000: 22 Feb 2017	[2g;37s]
2010	D.R. Frost: 22 Nov 2010	[2g];37s
2007	D.R. Frost: 20 Mar 2007	[2g];35s
2006	D.R. Frost et al.	[2g]
1982	W.E. Duellman	3sf;4g;[33s]
1979	T.I. Storer et al.	35s