Concise hierarchy

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

Current position

Halecomorphi (Division) Cope, 1872

Ref: J.S. Nelson, 2006: 99. [implicit]

Alternative positions

Actinopterygii (Class) Woodward, 1891	Ref: W.N. Eschmeyer & J.D. Fong, 2011: 27.
Actinopterygii (Subclass) Woodward, 1891	Ref: R.A. Fritzsche, 1982: 860.
Halecomorphi ([unranked]) Cope, 1872	Ref: J.S. Nelson, 2006: 99. [alternative position]
Holostei (Infraclass) Müller, 1846	Ref: T.I. Storer et al., 1979: 681.
Neopterygii (Infraclass) Regan, 1923	Ref: R.L. Carroll, 1988: 603.
Neopterygii (Subclass) Regan, 1923	Ref: J.S. Nelson, 2006: 98.
Osteichthyes (Class) Huxley, 1880	Ref: J.J. Sepkoski Jr., 2002: 308.

Historical positions

Actinopterygii (Class) Woodward, 1891	Ref: W.N. Eschmeyer, 2004-2016: 24 Jan 2006.
Actinopterygii (Class) Woodward, 1891	Ref: W.N. Eschmeyer & J.D. Fong, 2011: 27.
Halecomorphi ([unranked]) Cope, 1872	Ref: J.S. Nelson, 2006: 98-99. [alternative position]
Neopterygii (Subclass) Regan, 1923	Ref: J.S. Nelson, 2006: 98-99.
Osteichthyes (Class) Huxley, 1880	Ref: J.J. Sepkoski Jr., 2002: 308.
Actinopterygii (Class) Woodward, 1891	Ref: W.N. Eschmeyer, 1998: 2452.
Actinopterygii (Class) Woodward, 1891	Ref: 1998
Neopterygii (Infraclass) Regan, 1923	Ref: R.L. Carroll, 1988: 603.
Actinopterygii (Subclass) Woodward, 1891	Ref: R.A. Fritzsche, 1982: 860; 1114.
Holostei (Infraclass) Müller, 1846	Ref: T.I. Storer et al., 1979: 681-682.
Holostei (Superorder) Müller, 1846	Ref: B. Grzimek, 1973-1975

Number of Subtaxa

2024	Available in Systema Naturae 2000	1f;1g;1s; †3f;15g
1989-present	Systema Naturae 2000	1f;1g;1s; †3f;15g
2004-2016	W.N. Eschmeyer	[1f]
2011	W.N. Eschmeyer & J.D. Fong: 27	1f
2003	W.E. Bemis: 24 Jun 2003	[1f;1g; †3f;15g]
1998	W.N. Eschmeyer	1f
1988	R.L. Carroll: 603	[1f; †2f]
1982	R.A. Fritzsche: 860	1f;1g;1s
1973-1975	B. Grzimek	1f1g1s; †6f