Concise hierarchy

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

Subsequent positions

Possibly Pan-Coniferae (Clade) Cantino, Donoghue & Doyle 2007, nom. cl. inval.

Ref: P.D. Cantino et al., 2007: E20.

Current position

Pinopsida (Class) Burnett (1835)

Ref: Новіков, А. & Барабаш-Красни, Б. / Novikoff, A. & Barabasz-Krasny, B., 2015: 60; Klymiuk et al., 2022: fig. 21.

Alternative positions

coniferophytes ([unranked])	Ref: T.N. Taylor et al., 2009: App. 1 (p. 1029).
†Cordaitopsida (Class) Lesq. (1880)	Ref: A.B. Doweld, 2001: XVIII.
gymnosperms ([unranked])	Ref: K.M. Pryer et al., 2004: fig. 10.6. [inferred rank]
Pan-Coniferae (Clade) Cantino, Donoghue & Doyle 2007, nom. cl. inval.	Ref: P.D. Cantino et al., 2007: E20. [new position]

Historical positions

Pinopsida (Class) Burnett (1835)	Ref: A. Novikoff & B. Barabasz-Krasny, 2015: 60.
Coniferophytes ([unranked])	Ref: T.N. Taylor et al., 2009: App. 1 (p. 1029).
Pan-Coniferae (Clade) Cantino, Donoghue & Doyle 2007, nom. cl. inval.	Ref: P.D. Cantino et al., 2007: E20. [new position]
core seed plants ([unranked])	Ref: K.M. Pryer et al., 2004: fig. 10.6. [implicit]
gymnosperms ([unranked])	Ref: J. Cracraft & M.J. Donoghue, 2004: fig. 10.6.
†Cordaitopsida (Class) Lesq. (1880)	Ref: A.B. Doweld, 2001: XVIII.

Number of Subtaxa

2025	Available in Systema Naturae 2000	†1f;4g;1s
1989-present	Systema Naturae 2000: 5 May 2023	[; †1f;4g]
2015	A. Novikoff & B. Barabasz-Krasny: 60	[; †1f;4g]
2001	A.B. Doweld: XVIII	[; †1f]