Concise hierarchy

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

Phylogeny

Questionably Monophyletic

Ref: J.S. Nelson, 2006: 90.

Current position

Actinopteri (Class) Cope, 1871

Ref: R. Betancur-R et al., 2017: 13; van der Laan, 2018: 52.

Alternative positions

Actinopteri ([unranked]) Cope, 1871	Ref: E.O. Wiley & G.D. Johnson, 2010: 126. [indirect]
Actinopterygii (Class) Woodward, 1891	Ref: E.O. Wiley & G.D. Johnson, 2010: 126.

Historical positions

Actinopteri (Class) Cope, 1871	Ref: R. Betancur-R et al., 2017: 13, fig. 1.
Actinopterygii (Class) Woodward, 1891	Ref: E.O. Wiley & G.D. Johnson, 2010: 126.
Actinopterygii (Class) Woodward, 1891	Ref: J.S. Nelson, 2006: 87, 90, 95.
Actinopterygii (Class) Woodward, 1891	Ref: L.B. Halstead, 1974: 171.

Number of Subtaxa

2025	Available in Systema Naturae 2000	1o;2f;6g;28s;4ss; †1o;3f;13g;4s
1989-present	Systema Naturae 2000: 12 May 2025	[1o;2f;6g;28s;4ss; †1o;3f]
2017	R. Betancur-R et al.: 13	[1o;2f]