Concise hierarchy

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

Current position

Dactylopteroidei (Suborder) Jordan, 1923

Ref: R. van der Laan, 2018: 75; ECoF(4 Feb 2025).

Alternative positions

Gasterosteiformes (Order) Gill, 1872	Ref: W.N. Eschmeyer & J.D. Fong, 2011: 33.
Pegasiformes (Order)	Ref: R.L. Carroll, 1988: 608.
Pegasoidea (Superfamily)	Ref: J.S. Nelson et al., 2016: 406.
Syngnathoidei (Suborder) Berg, 1940	Ref: E.O. Wiley & G.D. Johnson, 2010: 154.

Historical positions

Dactylopteroidei (Suborder) Jordan, 1923	Ref: R. van der Laan, 2018: 75.
Dactylopteroidei (Suborder) Jordan, 1923	Ref: R. Betancur-R et al., 2017: 23.
Pegasoidea (Superfamily)	Ref: J.S. Nelson et al., 2016: 406-407.
Gasterosteiformes (Order) Gill, 1872	Ref: W.N. Eschmeyer, 2004-2016: 24 Jan 2006.
Gasterosteiformes (Order) Gill, 1872	Ref: W.N. Eschmeyer & J.D. Fong, 2011: 33.
Syngnathoidei (Suborder) Berg, 1940	Ref: E.O. Wiley & G.D. Johnson, 2010: 154.
Pegasoidea (Superfamily)	Ref: J.S. Nelson, 2006: 311-312.
Gasterosteiformes (Order) Gill, 1872	Ref: 1998
Gasterosteiformes (Order) Gill, 1872	Ref: W.N. Eschmeyer, 1998: 2472.
Pegasiformes (Order)	Ref: R.L. Carroll, 1988: 608.
Syngnathoidei (Suborder) Berg, 1940	Ref: R.A. Fritzsche, 1982: 905.
Pegasiformes (Order)	Ref: B. Grzimek, 1973-1975

Number of Subtaxa

2025	Available in Systema Naturae 2000	2g;5s
1989-present	Systema Naturae 2000: 4 Jul 2025	[2g;5s]
2011	W.N. Eschmeyer & J.D. Fong: 33	2g;5s
2006	J.S. Nelson: 312	[2g]
1982	R.A. Fritzsche: 905	2g;5s