Concise hierarchy

(Kingdom) Plantae - (Phylum) Rhodophyta

Phylogeny

Paraphyletic/Ancestral (para)

Ref: T. Cavalier-Smith, 1998: 249.

Subsequent positions

Eurhodophytina (Subphylum) G.W.Saunders & Hommers. (2004)		Ref: G.W. Saunders & M.H. Hommersand, 2004: 1504.
Macrorhodophytina (Subphylum) Caval.-Sm. (1998)		Ref: T. Cavalier-Smith, 1998: 250. [assumed]

Current position

Eurhodophytina (Subphylum) G.W.Saunders & Hommers. (2004)

Ref: M.A. Ruggiero et al., 2015b: table 2 (p. 27); Saunders & Hommersand, 2004: fig. 2.

Alternative positions

Macrorhodophytina (Subphylum) Caval.-Sm. (1998)	Ref: T. Cavalier-Smith, 1998: 250. [new position]
Rhodophyta (Phylum) Wettst. (1901)	Ref: R.C. van Caenegem et al., 1979-1984
Rhodymeniophyta (Phylum) Doweld (2001)	Ref: A.B. Doweld, 2001: LXXIII. [new position]

Historical positions

Eurhodophytina (Subphylum) G.W.Saunders & Hommers. (2004)	Ref: M.A. Ruggiero et al., 2015b: table 2 (p. 27).
Eurhodophytina (Subphylum) G.W.Saunders & Hommers. (2004)	Ref: G.W. Saunders & M.H. Hommersand, 2004: 1504, fig. 2. [new position]
Rhodymeniophyta (Phylum) Doweld (2001)	Ref: A.B. Doweld, 2001: LXXIII. [new position]
Macrorhodophytina (Subphylum) Caval.-Sm. (1998)	Ref: T. Cavalier-Smith, 1998: table 6 (p. 250); 249. [new position]

Number of Subtaxa

2025	Available in Systema Naturae 2000	2o;2f;4g;9s
1989-present	Systema Naturae 2000: 22 May 2023	[2o]
2015b	M.A. Ruggiero et al.: table 2 (p. 27)	[2o]
2004	G.W. Saunders & M.H. Hommersand: 1504	[1o;1f]
1998	T. Cavalier-Smith: 249	[2o]