Concise hierarchy

(Kingdom) Animalia - (Phylum) Chordata - (Class) Actinopterygii - (Order) Gymnotiformes

Current position

Gymnotoidei (Suborder) Rafinesque, 1810

Ref: E.O. Wiley & G.D. Johnson, 2010: 140.

Alternative positions

Characoidei (Suborder)	Ref: R.A. Fritzsche, 1982: 875.
Cypriniformes (Order) Rafinesque, 1810	Ref: T.I. Storer et al., 1979: 683.
Gymnotiformes (Order) Rafinesque, 1810	Ref: W.N. Eschmeyer & J.D. Fong, 2011: 30.

Historical positions

Gymnotiformes (Order) Rafinesque, 1810	Ref: W.N. Eschmeyer, 2004-2016: 24 Jan 2006.
Gymnotiformes (Order) Rafinesque, 1810	Ref: W.N. Eschmeyer & J.D. Fong, 2011: 30.
Gymnotoidei (Suborder) Rafinesque, 1810	Ref: E.O. Wiley & G.D. Johnson, 2010: 140.
Gymnotoidei (Suborder) Rafinesque, 1810	Ref: J.S. Nelson, 2006: 186-187.
Gymnotiformes (Order) Rafinesque, 1810	Ref: 1998
Gymnotiformes (Order) Rafinesque, 1810	Ref: W.N. Eschmeyer, 1998: 2463.
Characoidei (Suborder)	Ref: R.A. Fritzsche, 1982: 875.
Cypriniformes (Order) Rafinesque, 1810	Ref: T.I. Storer et al., 1979: 683.
Gymnotoidei (Suborder) Rafinesque, 1810	Ref: B. Grzimek, 1973-1975

Number of Subtaxa

2024	Available in Systema Naturae 2000	2g;34s
1989-present	Systema Naturae 2000: 23 Feb 2013	[2g;34s]
2011	W.N. Eschmeyer & J.D. Fong: 30	2g;37s
1982	R.A. Fritzsche: 875	[1g]