Concise hierarchy

(Kingdom) Plantae - (Phylum) Tracheophyta - (Class) Gnetopsida

Subsequent positions

Anthophytales (Clade) Crane & Kenrick 1997, nom. cl. inval.

Ref: P.R. Crane & P. Kenrick, 1997: tables 6 (p. 97), 7 (p. 99). [implicit]

Subsequent entries

†Chaoyangia (Genus) Duan (1998), nom. inval.		Ref: G. Sun et al., 1998 [assumed]
†Eragrosites (Genus) Z. Cao & S.Q.Wu (1998), nom. inval.		Ref: G. Sun et al., 1998 [assumed]

Current position

Gnetopsida (Class) Eichler ex Kirpot. (1884)

Ref: Новіков, А. & Барабаш-Красни, Б. / Novikoff, A. & Barabasz-Krasny, B., 2015: 59.

Alternative positions

Anthophytales (Clade) Crane & Kenrick 1997, nom. cl. inval.	Ref: P.R. Crane & P. Kenrick, 1997: table 7 (p. 99). [inferred rank]
core seed plants ([unranked])	Ref: M.J. Donoghue, 2004: fig. 33.1. [inferred rank]
Gnetidae (Subclass) Pax (1894)	Ref: D.J. Mabberley, 2017: App. (p. 999).
Gnetinae (Class)	Ref: L.J. Audus & V. Heywood, 1981: 10.
Gymnospermae ([unranked]) Lindl.	Ref: B. Odé et al., 2010: 70.
gymnosperms ([unranked])	Ref: T.N. Taylor et al., 2009: App. 1 (p. 1029).

Historical positions

Gnetidae (Subclass) Pax (1894)	Ref: D.J. Mabberley, 2017: App. (p. 999).
Gnetidae (Subclass) Pax (1894)	Ref: M.A. Ruggiero et al., 2015b: table 2 (p. 34).
Gnetopsida (Class) Eichler ex Kirpot. (1884)	Ref: A. Novikoff & B. Barabasz-Krasny, 2015: 59.
Gnetidae (Subclass) Pax (1894)	Ref: M.J.M. Christenhusz et al., 2011: 58.
Gymnospermae ([unranked]) Lindl.	Ref: B. Odé et al., 2010: 70.
Other Gymnosperms ([unranked])	Ref: T.N. Taylor et al., 2009: App. 1 (p. 1029).
core seed plants ([unranked])	Ref: M.J. Donoghue, 2004: fig. 33.1.
Gnetopsida (Class) Eichler ex Kirpot. (1884)	Ref: A.B. Doweld, 2001: XVIII.
Anthophytales (Clade) Crane & Kenrick 1997, nom. cl. inval.	Ref: P.R. Crane & P. Kenrick, 1997: table 7 (p. 99).
Gnetinae (Class)	Ref: L.J. Audus & V. Heywood, 1981: 10.

Number of Subtaxa

2024	Available in Systema Naturae 2000	1f;1g;1s; †9g;2s
1989-present	Systema Naturae 2000: 3 May 2023	[1f;1g; †9g]
2017	D.J. Mabberley: App. (p. 999)	[3f]
2015	A. Novikoff & B. Barabasz-Krasny: 59	[1f;1g; †9g]
2011	M.J.M. Christenhusz et al.: 58	[1f;1g;30s]
2001	A.B. Doweld: XVIII	[1f]