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)
- Subclass Rhodymeniophycidae (772)
- Order Acrosymphytales (4)
- Order Atractophorales (1)
- Order Bonnemaisoniales (9)
- Order Ceramiales (414)
- Suborder Ceramiineae
- Suborder Spermothamniineae
- Family Callithamniaceae Kützing, 1843 (38)
- Family Ceramiaceae Dumortier, 1822 (91)
- Family Dasyaceae Kützing, 1843
- Family Delesseriaceae Bory, 1828 (68)
- Family Rhodomelaceae Horaninow, 1847 (179)
- Family Sarcomeniaceae Womersley, 2003
- Family Spyridiaceae
- Family Wrangeliaceae J.Agardh, 1851 (38)
- Tribe Griffithsieae Schmitz, 1889 (16)
- Tribe Lejolisieae Feldmann-Mazoyer, 1941 (5)
- Tribe Monosporeae Schmitz & Hauptfleisch, 1897 (1)
- Tribe Ptiloteae F.Schmitz & Hauptfleisch, 1897 (3)
- Genus Plumaria F.Schmitz, 1896 (1)
- Species Plumaria plumosa (Hudson) Kuntze, 1891
- Genus Ptilota C.Agardh, 1817 (2)
- Tribe Spermothamnieae Schmitz, 1889 (8)
- Tribe Sphondylothamnieae Feldmann-Mazoyer, 1941 (3)
- Tribe Wrangelieae Schmitz, 1889 (2)
- Order Gelidiales (39)
- Order Gigartinales (102)
- Order Gracilariales (17)
- Order Halymeniales (32)
- Order Nemastomatales (16)
- Order Peyssonneliales (64)
- Order Plocamiales (5)
- Order Rhodymeniales (65)
- Order Sebdeniales (4)
- Subphylum (Subdivision) Proteorhodophytina (24)
- Class Rhodophyta incertae sedis (5)
- Subkingdom Viridiplantae (298)