Concise hierarchy

(Kingdom) Plantae - (Phylum) Tracheophyta

Current position

†Zosterophyllophytina (Subphylum) H.P.Banks (1968)

Ref: A.B. Doweld, 2001: II. [implicit]

Alternative positions

Lycophytina (Subdivision) "Banks, 1968"	Ref: P. Kenrick & P.R. Crane, 1997a: table 7.1 (p. 228); Crane & Kenrick, 1997: fig. 1.
Pteridophyta (Division) Schimp. (1879)	Ref: C.J. Cleal & B.A. Thomas, 1995: 12.
†Zosterophyllophyta (Phylum) H.C.Bold (1973)	Ref: A.B. Doweld, 2001: II.
†Zosterophyllophyta (Division) H.C.Bold (1973)	Ref: Новіков, А. & Барабаш-Красни, Б. / Novikoff, A. & Barabasz-Krasny, B., 2015: 44.

Historical positions

†Zosterophyllophyta (Division) H.C.Bold (1973)	Ref: A. Novikoff & B. Barabasz-Krasny, 2015: 44.
†Zosterophyllophyta (Phylum) H.C.Bold (1973)	Ref: A.B. Doweld, 2001: II.
Lycophytina (Subdivision) "Banks, 1968"	Ref: P. Kenrick & P.R. Crane, 1997a: table 7.1 (p. 228).
Pteridophyta (Division) Schimp. (1879)	Ref: C.J. Cleal & B.A. Thomas, 1995: 12.

Number of Subtaxa

2025	Available in Systema Naturae 2000	†2o;4f;15g;9s
1989-present	Systema Naturae 2000: 27 Jan 2023	[; †2o;4f;15g]
2015	A. Novikoff & B. Barabasz-Krasny: 44	[; †2o;4f;8g]
2001	A.B. Doweld: II	[; †2o;6f]
1997a	P. Kenrick & P.R. Crane: table 7.1 (p. 228)	[; †1o;4f]
1995	C.J. Cleal & B.A. Thomas: 12	[; †1o;1f]