Concise hierarchy

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

Phylogeny

Probably Paraphyletic/Ancestral (para)

Ref: J.S. Nelson et al., 2016: 116 ("probably artificial/paraphyletic").

Current position

Neopterygii (Subclass) Regan, 1923

Ref: R. van der Laan, 2018: 54; Benton, 2015: box 7.6. [implicit]

Alternative positions

Actinopteri (Infraclass) Cope, 1871	Ref: M.J. Benton, 2005: 391.
Actinopteri ([unranked]) Cope, 1871	Ref: M.J. Benton, 2005: 391. [implicit]
Chondrostei (Infraclass) Müller, 1844	Ref: R.L. Carroll, 1988: 602.
Chondrostei (Subclass) Müller, 1844	Ref: J.S. Nelson, 2006: 95.
Neopterygii (Superdivision) Regan, 1923	Ref: R. van der Laan, 2018: 54; Benton, 2015: box 7.6.
Osteichthyes (Class) Huxley, 1880	Ref: J.J. Sepkoski Jr., 2002: 307.
†subholosteans ([unranked])	Ref: J.S. Nelson et al., 2016: 116; [Kuhn-Schnyder, 1964: 399].

Historical positions

Neopterygii (Superdivision) Regan, 1923	Ref: R. van der Laan, 2018: 54.
†subholosteans ([unranked])	Ref: J.S. Nelson et al., 2016: 116.
Chondrostei (Subclass) Müller, 1844	Ref: J.S. Nelson, 2006: 95.
Actinopteri (Infraclass) Cope, 1871	Ref: M.J. Benton, 2005: 391, fig. 7.7.
Osteichthyes (Class) Huxley, 1880	Ref: J.J. Sepkoski Jr., 2002: 307.
Actinopterygii (Class) Woodward, 1891	Ref: 1998
Chondrostei (Infraclass) Müller, 1844	Ref: R.L. Carroll, 1988: 602.

Number of Subtaxa

2025	Available in Systema Naturae 2000	†10f;12g
1989-present	Systema Naturae 2000: 22 May 2024	[; †10f]
2018	R. van der Laan: 54	[; †10f]
2016	J.S. Nelson et al.: 116	[; †6f]
1988	R.L. Carroll: 602	[; †5f]