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 (247 559)
- Kingdom Animalia (211 523)
- Kingdom Archaea (117)
- Kingdom Bacteria (2 223)
- Kingdom Chromista (20 791)
- Subkingdom Chromista incertae sedis (5)
- Subkingdom Chromobiota
- Subkingdom Cryptista accepted as Cryptophyta
- Subkingdom Hacrobia (568)
- Subkingdom Harosa (18 423)
- Infrakingdom Alveolata (5 969)
- Infrakingdom Heterokonta (2 795)
- Infrakingdom Rhizaria (9 658)
- Phylum Cercozoa (273)
- Phylum Foraminifera (8 887)
- Phylum Radiozoa (498)
- Class Acantharia (39)
- Class Polycystina (454)
- Order Nassellaria (287)
- Suborder Collodaria (1)
- Suborder Nassellaria incertae sedis
- Superfamily Eucyrtidiacea Ehrenberg, 1847
- Family Acanthodesmiidae accepted as Trissocyclidae Haeckel, 1881, emend. Goll, 1968
- Family Archiphormididae (2)
- Family Artostrobiidae Riedel, 1967 emend. Foreman, 1973 (10)
- Family Cannobotryidae Haeckel, 1881 emend. Riedel, 1967 (16)
- Family Carpocaniidae Haeckel, 1881 emend. Riedel, 1967 (7)
- Family Collozoidae Haeckel, 1862 (55)
- Family Plagiacanthidae Hertwig, 1879 (71)
- Family Pterocoryidae Haeckel, 1881, emend. Riedel, 1976 accepted as Pterocorythidae Haeckel, 1881
- Family Pterocorythidae Haeckel, 1881 (17)
- Family Spyridae Ehrenberg, 1847 emend. Petrushevskaya, 1971 accepted as Trissocyclidae Haeckel, 1881, emend. Goll, 1968
- Family Theoperidae Haeckel, 1881 emend. Riedel, 1967 (74)
- Genus Artopilium (1)
- Genus Artostrobus (2)
- Genus Bathropyramis (1)
- Genus Calocyclas (1)
- Genus Clathrocyclas (1)
- Genus Conarachnium (2)
- Genus Conicavus (1)
- Genus Cornutella Ehrenberg, 1838 (1)
- Genus Corocalyptra Haeckel, 1887 (2)
- Genus Cycladophora Ehrenberg, 1847 (3)
- Genus Cyrtolagena (1)
- Genus Cyrtopera (1)
- Genus Dictyocephalus
- Genus Dictyoceras
- Genus Dictyocodon (1)
- Genus Dictyophimus Ehrenberg, 1847 emend. Nigrini, 1968 (7)
- Genus Eucecryphalus (6)
- Genus Eucyrtidium Ehrenberg, 1847 emend. Nigrini, 1967 (10)
- Genus Gondwanaria (2)
- Genus Lipmanella (4)
- Genus Litharachnium (2)
- Genus Lithocampe Ehrenberg, 1844 (1)
- Genus Lithomitra (1)
- Genus Lithopera (1)
- Genus Lithopilium (1)
- Genus Lithostrobus Bütschli, 1882 (3)
- Genus Lophocorys (1)
- Genus Lophocyrtis (1)
- Genus Lychnocanium Ehrenberg, 1847
- Genus Peripyramis Haeckel, 1881 emend. Riedel, 1958 (1)
- Genus Perypiramis
- Genus Phrenocodon (1)
- Genus Plectopyramis Haeckel, 1881 (1)
- Genus Pterocanium Ehrenberg, 1847 (6)
- Genus Pterocyrtidium
- Genus Sethoconus (2)
- Genus Stichocorys Haeckel, 1881 (1)
- Genus Stichopera
- Genus Stichopilidium (2)
- Genus Theocalyptra Haeckel, 1887
- Genus Theocorys (1)
- Genus Theopilium (1)
- Family Trissocyclidae Haeckel, 1881, emend. Goll, 1968 (34)
- Order Nassellarida accepted as Nassellaria
- Order Spumellaria (167)
- Class Radiozoa incertae sedis (3)
- Class Sticholonchea (1)
- Order Osculosida
- Family Cadiidae Borgert, 1901 (1)
- Phylum Chromeridophyta (1)
- Phylum Bacillariophyta (1)
- Phylum Chrysophyta accepted as Chrysophyceae
- Phylum Heterokontophyta (1 794)
- Phylum Xanthophyta accepted as Xanthophyceae
- Kingdom Fungi (1 432)
- Kingdom Monera represented as Bacteria
- Kingdom Plantae (10 581)
- Kingdom Protozoa (766)
- Kingdom Viruses (115)
