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 (247 582)
- Kingdom Animalia (211 546)
- 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)
- Class Foraminifera incertae sedis (15)
- Class Globothalamea (3 954)
- Class Monothalamea (689)
- Class Nodosariata (2 393)
- Subclass Hormosinana (174)
- Subclass Nodosariana (2 219)
- Order Delosinida (19)
- Order Lagenida
- Order Nodosariida (559)
- Suborder Nodosariina (559)
- Superfamily Nodosarioidea Ehrenberg, 1838 (559)
- Family Glandulonodosariidae Silvestri, 1901 † (1)
- Family Lagenidae Reuss, 1862 (315)
- Family Nodosariidae Ehrenberg, 1838 (243)
- Subfamily Frondiculariinae Reuss, 1860 (26)
- Subfamily Lingulininae Loeblich & Tappan, 1961 (46)
- Genus Lingulina d'Orbigny, 1826 (32)
- Genus Neolingulina McCulloch, 1977 (4)
- Species Neolingulina krebsi McCulloch, 1977
- Species Neolingulina neglectiformis McCulloch, 1977
- Species Neolingulina parva McCulloch, 1977
- Species Neolingulina veijoensis McCulloch, 1977 accepted as Neolingulina viejoensis McCulloch, 1977
- Species Neolingulina viejoensis McCulloch, 1977
- Genus Pseudolingulina McCulloch, 1977 (9)
- Genus Rimulina d'Orbigny, 1826
- Genus Torulumbonina Patterson, 1987 (1)
- Subfamily Nodosariinae Ehrenberg, 1838 (166)
- Genus Lagenonodosaria Silvestri, 1900 accepted as Amphicoryna Schlumberger in Milne-Edwards, 1881
- Genus Lingulinopsis Reuss, 1860 (5)
- Genus Nodosarina Parker & Jones, 1859 accepted as Nodosaria Lamarck, 1816
- Genus Paralingulina McCulloch, 1977 accepted as Paralingulinella McCulloch, 1981
- Genus Paralingulinella McCulloch, 1981 accepted as Behillia Haman, 1979
- Genus Pseudoglandulina Cushman, 1929 accepted as Pyramidulina Fornasini, 1894
- Order Polymorphinida (1 299)
- Order Vaginulinida (342)
- Class Tubothalamea (1 836)
- Class Xenophyophorea accepted as Xenophyophoroidea
- Order Foraminiferida accepted as Foraminifera
- Phylum Radiozoa (498)
- 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)