Concise hierarchy

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

Subsequent positions

Bipedoidea (Superfamily) Taylor, 1951

Ref: N. Vidal & S.B. Hedges, 2009: 134.

Current position

Bipedoidea (Superfamily) Taylor, 1951

Ref: N. Vidal & S.B. Hedges, 2009: 134. [new position]

Alternative positions

Amphisbaenia (Infraorder) (Gray, 1844)	Ref: N. Vidal et al., 2007: 2. [implicit]
Amphisbaenia (Suborder) Gray, 1844	Ref: P. Uetz, 2007-2010: 18 Mar 2010.
Amphisbaenia ([unranked]) Gray, 1844	Ref: N. Vidal et al., 2007: fig. 1. [implicit]
Annulata (Infraorder)	Ref: R.L. Carroll, 1988: App. (p. 617).
Lacertoidea ([unranked]) Camp, 1923	Ref: R.A. Pyron et al., 2013: fig. 1.

Historical positions

Lacertoidea ([unranked]) Camp, 1923	Ref: R.A. Pyron et al., 2013: 47, fig. 1.
Bipedoidea (Superfamily) Taylor, 1951	Ref: N. Vidal & S.B. Hedges, 2009: 131, 134, figs. 2, 6. [new position]
Amphisbaenia ([unranked]) Gray, 1844	Ref: N. Vidal et al., 2007: [1], fig. 1. [implicit]
Amphisbaenia (Suborder) Gray, 1844	Ref: P. Uetz, [1995-]1996: 30 Dec 1996.
Annulata (Infraorder)	Ref: R.L. Carroll, 1988: App. (p. 617).

Number of Subtaxa

2026	Available in Systema Naturae 2000	1g;3s
1989-present	Systema Naturae 2000: 16 Oct 2016	[1g;3s]
2016	P. Uetz et al.: 16 Aug 2016	[1g;3s]
2013	R.A. Pyron et al.: 47	[1g]
2009	N. Vidal & S.B. Hedges: 131	1g;[3s]
2007	N. Vidal et al.: [1]	1g;[3s]
[1995-]2000	P. Uetz	4s