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)
- Order Gelidiales (39)
- Order Gigartinales (102)
- Order Gracilariales (17)
- Order Halymeniales (32)
- Order Nemastomatales (16)
- Order Peyssonneliales (64)
- Order Plocamiales (5)
- Order Rhodymeniales (65)
- Family Champiaceae Kützing, 1843 (10)
- Family Faucheaceae Strachan, G.W.Saunders & Kraft, 1999 (6)
- Family Hymenocladiaceae L.Le Gall, Dalen & G.W.Saunders, 2008 (1)
- Family Lomentariaceae J. Agardh, 1876 (18)
- Family Rhodymeniaceae Harvey, 1849 (29)
- Genus Botryocladia (J.Agardh) Kylin, 1931 (12)
- Genus Chrysymenia J.Agardh, 1842 (2)
- Genus Coelarthrum Børgesen, 1910 (1)
- Genus Cordylecladia J.Agardh, 1852 (2)
- Genus Halichrysis (J.Agardh) F.Schmitz, 1889 (1)
- Genus Irvinea Guiry, 1999 (3)
- Species Irvinea ardreana (J.Brodie & Guiry) Guiry, 1999
- Species Irvinea boergesenii (Feldmann) R.J.Wilkes, L.M.McIvor & Guiry, 2006
- Species Irvinea chiajeana (Meneghini) Cormaci, Alongi & G.Furnari, 2012
- Genus Rhodymenia Greville, 1830 (8)
- Family Rhodymeniales incertae sedis (1)
- Order Sebdeniales (4)
- Subphylum (Subdivision) Proteorhodophytina (24)
- Class Rhodophyta incertae sedis (5)
- Subkingdom Viridiplantae (298)