Concise hierarchy

(Kingdom) Animalia - (Phylum) Chordata - (Class) Actinopteri - (Order) Osteoglossiformes

Phylogeny

Paraphyletic/Ancestral (para)		Ref: J.S. Nelson, 2006: 107.
Paraphyletic/Ancestral (para)		Ref: J.S. Nelson et al., 2016: 160.

Current position

Osteoglossiformes (Order) Berg, 1940

Ref: R. van der Laan, 2018: 63; ECoF(4 Feb 2025); Cavin, 2008: fig. 8.

Alternative positions

Isospondyli (Order) Cope, 1887
Mormyriformes (Order)	Ref: R.A. Fritzsche, 1982: 861.
Mormyroidei (Suborder)	Ref: R.L. Carroll, 1988: 604.
Notopteroidei (Suborder)	Ref: J.S. Nelson, 2006: 104 [Li & Wilson, 1996]. [by reference]
Scyphophori (Suborder)	Ref: D.S. Jordan, 1923: 124.

Historical positions

Osteoglossiformes (Order) Berg, 1940	Ref: R. van der Laan, 2018: 63.
Osteoglossiformes (Order) Berg, 1940	Ref: R. Betancur-R et al., 2017: 14.
Osteoglossiformes (Order) Berg, 1940	Ref: J.S. Nelson et al., 2016: 159-160.
Osteoglossiformes (Order) Berg, 1940	Ref: W.N. Eschmeyer, 2004-2016: 24 Jan 2006.
Osteoglossiformes (Order) Berg, 1940	Ref: W.N. Eschmeyer & J.D. Fong, 2011: 27.
Osteoglossiformes (Order) Berg, 1940	Ref: E.O. Wiley & G.D. Johnson, 2010: 133.
Osteoglossiformes (Order) Berg, 1940	Ref: J.S. Nelson, 2006: 107; 104.
Osteoglossiformes (Order) Berg, 1940	Ref: 1998
Osteoglossiformes (Order) Berg, 1940	Ref: W.N. Eschmeyer, 1998: 2452.
Mormyroidei (Suborder)	Ref: R.L. Carroll, 1988: 604.
Mormyriformes (Order)	Ref: R.A. Fritzsche, 1982: 861.
Osteoglossomorpha (Superorder) Greenwood et al., 1966	Ref: T.I. Storer et al., 1979: 682. [rough position]
Scyphophori (Suborder)	Ref: D.S. Jordan, 1923: 124.

Number of Subtaxa

2025	Available in Systema Naturae 2000	22g;192s;28ss
1989-present	Systema Naturae 2000: 13 May 2025	[22g; †0g]
2011	W.N. Eschmeyer & J.D. Fong: 27	21g;195s
2003	W.E. Bemis: 24 Jun 2003	[18g; †0g]
1982	R.A. Fritzsche: 861	10g;100s
1979	T.I. Storer et al.	~150s