Between brackets is the number of accepted marine extant species
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Shows the number of accepted marine extant species within the taxon
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- Biota (1 799)
- Kingdom Chromista (437)
- Kingdom Plantae (1 362)
- Subkingdom Biliphyta (1 064)
- Phylum (Division) Rhodophyta (1 064)
- Subphylum (Subdivision) Eurhodophytina (1 035)
- Class Bangiophyceae (20)
- Class Florideophyceae (1 015)
- Subclass Ahnfeltiophycidae (1)
- Subclass Corallinophycidae (119)
- Subclass Hildenbrandiophycidae (3)
- Subclass Nemaliophycidae (120)
- Order Acrochaetiales (55)
- Order Batrachospermales
- Order Colaconematales (22)
- Order Nemaliales (32)
- Order Palmariales (11)
- Family Meiodiscaceae S.L.Clayden & G.W.Saunders, 2010 (4)
- Genus Meiodiscus G.W.Saunders & McLachlan, 1991 (2)
- Genus Rhodophysemopsis Masuda, 1976 (1)
- Genus Rubrointrusa S.L.Clayden & G.W.Saunders, 2010 (1)
- Family Palmariaceae Guiry, 1974 (2)
- Family Rhodophysemataceae G.W. Saunders & J.L. McLachlan, 1990 (4)
- Family Rhodothamniellaceae G.W. Saunders, 1995 (1)
- Subclass Rhodymeniophycidae (772)
- Subphylum (Subdivision) Proteorhodophytina (24)
- Class Rhodophyta incertae sedis (5)
- Subkingdom Viridiplantae (298)