Concise hierarchy

(Kingdom) Animalia - (Phylum) Chordata

Subsequent positions

†Microsauromorpha (Subclass) Kuhn, 1972

Ref: O. Kuhn, 1972: 68.

Current position

†Lepospondyli (Superorder) Zittel, 1887

Ref: M.J. Benton, 2005: 394.

Alternative positions

†Labyrinthodontia (Subclass) Meyer, 1842	Ref: H.-P. Schultze et al., 1985: [1].
†Lepospondyli (Subclass) Zittel, 1888	Ref: R.L. Carroll, 1988: 614.
†Microsauromorpha (Subclass) Kuhn, 1972	Ref: O. Kuhn, 1972: 68. [inferred rank]

Historical positions

†Lepospondyli (Superorder) Zittel, 1887	Ref: M.J. Benton, 2005: 394, box 4.5.
†Lepospondyli (Subclass) Zittel, 1888	Ref: 1998
†Lepospondyli (Subclass) Zittel, 1888	Ref: R.L. Carroll, 1988: 614.
†Lepospondyli (Subclass) Zittel, 1888	Ref: A.S. Romer & T.S. Parsons, 1986: App. 1 (p. 622).
†Labyrinthodontia (Subclass) Meyer, 1842	Ref: H.-P. Schultze et al., 1985: [1], 8.
†Lepospondyli (Subclass) Zittel, 1888	Ref: T.I. Storer et al., 1979
†Lepospondyli (Subclass) Zittel, 1888	Ref: B. Grzimek et al., 1975 (1970): 573.
†Microsauromorpha (Subclass) Kuhn, 1972	Ref: O. Kuhn, 1972: 68. [new position]

Number of Subtaxa

2024	Available in Systema Naturae 2000	†11f;6g;1s
1989-present	Systema Naturae 2000: 3 Jul 2017	[; †11f]
1988	R.L. Carroll: 614	[; †11f]