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Taxon: Subclass Neopterygii Regan, 1923 (fish)
 Entity: 

Concise hierarchy

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

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.
Osteichthyes (Class) Huxley, 1880

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, 95-96.
Chondrostei (Subclass) Müller, 1844 Ref: J.S. Nelson, 2006: 95. [excluded]

Number of Subtaxa

2025 Available in Systema Naturae 2000 52o;525f;5065g;28,071s;520ss;5v; ‡3g;21s;4ss; †24o;225f;630g;105s
1989-present Systema Naturae 2000: 19 Sep 2025 [52o;525f;5065g; †24o;225f]
2017 R. Betancur-R et al.: 32 [68o;506f]
2006 J.S. Nelson: 458 [42o;451f]
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Last updated: 21 Sep 2025