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 (247 538)
- Kingdom Animalia (211 503)
- Subkingdom Animalia incertae sedis
- Subkingdom Metazoa accepted as Animalia
- Phylum Acanthocephala (516)
- Phylum Annelida (14 105)
- Phylum Arthropoda (59 754)
- Phylum Aschelminthes
- Phylum Brachiopoda (408)
- Phylum Bryozoa (6 539)
- Phylum Cephalorhyncha
- Phylum Chaetognatha (132)
- Phylum Chordata (24 095)
- Phylum Cnidaria (12 578)
- Phylum Ctenophora (184)
- Phylum Cycliophora (2)
- Phylum Dicyemida (122)
- Phylum Echinodermata (7 644)
- Phylum Ectoprocta accepted as Bryozoa
- Phylum Entoprocta (202)
- Phylum Gastrotricha (523)
- Phylum Gnathostomulida (100)
- Phylum Hemichordata (137)
- Phylum Kinorhyncha (348)
- Phylum Loricifera (46)
- Phylum Mesozoa accepted as Dicyemida
- Phylum Mollusca (52 039)
- Subphylum Aculifera
- Subphylum Conchifera
- Subphylum Placophora accepted as Polyplacophora
- Superclass Aplacophora
- Class Amphineura accepted as Aculifera
- Class Bivalvia (8 541)
- Class Caudofoveata (143)
- Class Cephalopoda (859)
- Class Conchifera accepted as Bivalvia
- Class Gastropoda (40 482)
- Subclass Angiogastropoda represented as Gastropoda
- Subclass Apogastropoda
- Subclass Caenogastropoda (26 434)
- Subterclass Sorbeoconcha (1)
- Superorder Hypsogastropoda
- Order Architaenioglossa (1)
- Order Caenogastropoda incertae sedis (3 479)
- Order Littorinimorpha (7 115)
- Order Neogastropoda (15 838)
- Superfamily Buccinoidea Rafinesque, 1815 (3 551)
- Superfamily Cancellarioidea Forbes & Hanley, 1851 accepted as Volutoidea Rafinesque, 1815
- Superfamily Conoidea J. Fleming, 1822 (5 667)
- Superfamily Mitroidea Swainson, 1831 (476)
- Superfamily Muricoidea Rafinesque, 1815 (1 978)
- Superfamily Neogastropoda incertae sedis (86)
- Superfamily Olivoidea Latreille, 1825 (495)
- Superfamily Pseudolivoidea De Gregorio, 1880 accepted as Olivoidea Latreille, 1825
- Superfamily Toxoglossa Troschel, 1848 accepted as Conoidea J. Fleming, 1822
- Superfamily Turbinelloidea Swainson, 1835 (873)
- Superfamily Volutoidea Rafinesque, 1815 (2 712)
- Family Cancellariidae Forbes & Hanley, 1851 (362)
- Family Cystiscidae W. Stimpson, 1865 (497)
- Family Granulinidae G. A. Coovert & H. K. Coovert, 1995 (139)
- Family Marginellidae J. Fleming, 1828 (1 280)
- Family Marginellonidae Coan, 1965 (4)
- Family Plesiocystiscidae G. A. Coovert & H. K. Coovert, 1995 accepted as Plesiocystiscinae G. A. Coovert & H. K. Coovert, 1995
- Family Volutidae Rafinesque, 1815 (430)
- Subfamily Amoriinae J. E. Gray, 1857 (129)
- Subfamily Athletinae Pilsbry & Olsson, 1954 (30)
- Genus Afriathleta S. G. Veldsman & J. H. Veldsman, 2022 accepted as Athleta (Neoathleta) Sacco, 1890 † (7)
- Genus Athleta Conrad, 1853 (1)
- Subgenus Athleta (Athleta) Conrad, 1853 represented as Athleta Conrad, 1853
- Subgenus Athleta (Ternivoluta) E. von Martens, 1897 accepted as Ternivoluta E. von Martens, 1897
- Species Athleta (Ternivoluta) insperata Darragh, 1979 accepted as Ternivoluta insperata (Darragh, 1979)
- Species Athleta (Ternivoluta) pisororum H. Morrison, 2006 accepted as Ternivoluta pisororum (H. Morrison, 2006)
- Species Athleta (Ternivoluta) studeri (E. von Martens, 1897) accepted as Ternivoluta studeri (E. von Martens, 1897)
- Species Athleta abyssicola (A. Adams & Reeve, 1848) accepted as Capensisvoluta abyssicola (A. Adams & Reeve, 1848)
- Species Athleta boswellae (Rehder, 1969) accepted as Capensisvoluta boswellae (Rehder, 1969)
- Species Athleta disparilis (Rehder, 1969) accepted as Capensisvoluta disparilis (Rehder, 1969)
- Species Athleta easoni Petuch & Berschauer, 2017 accepted as Capensisvoluta easoni (Petuch & Berschauer, 2017)
- Species Athleta emmanuelae (Rosso, 1985) accepted as Capensisvoluta emmanuelae (Rosso, 1985)
- Species Athleta epigona (E. von Martens, 1904) accepted as Afriathleta epigona (E. von Martens, 1904)
- Species Athleta gilchristi (G. B. Sowerby III, 1902) accepted as Nataliavoluta gilchristi (G. B. Sowerby III, 1902)
- Species Athleta glabrata (Kilburn, 1971) accepted as Nataliavoluta glabrata (Kilburn, 1971)
- Species Athleta insperata Darragh, 1979 accepted as Ternivoluta insperata (Darragh, 1979)
- Species Athleta kilburni (Rehder, 1974) accepted as Afriathleta kilburni (Rehder, 1974)
- Species Athleta lutosa (H. J. Koch, 1948) accepted as Capensisvoluta lutosa (H. J. Koch, 1948)
- Species Athleta magister (Kilburn, 1980)
- Species Athleta massieri Petuch & Berschauer, 2017 accepted as Capensisvoluta massieri (Petuch & Berschauer, 2017)
- Species Athleta mozambicana (Rehder, 1972) accepted as Nataliavoluta mozambicana (Rehder, 1972)
- Species Athleta nana (Rehder, 1974) accepted as Nataliavoluta nana (Rehder, 1974)
- Species Athleta nicklesi (Rosso, 1976) accepted as Capensisvoluta nicklesi (Rosso, 1976)
- Species Athleta pisororum H. Morrison, 2006 accepted as Ternivoluta pisororum (H. Morrison, 2006)
- Species Athleta rosavittoriae (Rehder, 1981) accepted as Afriathleta rosavittoriae (Rehder, 1981)
- Species Athleta semirugata (Rehder & C. S. Weaver, 1974) accepted as Afriathleta semirugata (Rehder & C. S. Weaver, 1974)
- Species Athleta studeri (E. von Martens, 1897) accepted as Ternivoluta studeri (E. von Martens, 1897)
- Genus Capensisvoluta S. G. Veldsman & J. H. Veldsman, 2022 (13)
- Genus Nataliavoluta S. G. Veldsman & J. H. Veldsman, 2022 (6)
- Genus Ternivoluta E. von Martens, 1897 (3)
- Genus Volutospina R. B. Newton, 1906 accepted as Athleta (Volutospina) R. B. Newton, 1906 †
- Subfamily Calliotectinae Pilsbry & Olsson, 1954 (18)
- Subfamily Cymbiinae H. Adams & A. Adams, 1853 (1847) (86)
- Subfamily Fulgorariinae Pilsbry & Olsson, 1954 (45)
- Subfamily Plicolivinae Bouchet, 1990 (2)
- Subfamily Scaphellinae Gray, 1857 (26)
- Subfamily Volutinae Rafinesque, 1815 (94)
- Subfamily Volutomitrinae J. E. Gray, 1854 accepted as Volutomitridae J. E. Gray, 1854
- Subfamily Zidoninae H. Adams & A. Adams, 1853 accepted as Zidonini H. Adams & A. Adams, 1853
- Order Stenoglossa accepted as Neogastropoda
- Subclass Gastropoda incertae sedis (1)
- Subclass Heterobranchia (8 999)
- Subclass Neomphaliones accepted as Vetigastropoda
- Subclass Neritimorpha (245)
- Subclass Orthogastropoda represented as Gastropoda
- Subclass Patellogastropoda (360)
- Subclass Prosobranchia
- Subclass Psilogastropoda represented as Gastropoda
- Subclass Vetigastropoda (4 443)
- Class Lamellibranchiata accepted as Bivalvia
- Class Loricata accepted as Polyplacophora
- Class Mollusca incertae sedis † (4)
- Class Monoplacophora (31)
- Class Pelecypoda accepted as Bivalvia
- Class Polyplacophora (1 085)
- Class Polyplaxiphora accepted as Polyplacophora
- Class Scaphopoda (581)
- Class Solenoconchia accepted as Scaphopoda
- Class Solenogastres (313)
- Subclass Chaetodermomorpha accepted as Caudofoveata
- Phylum Nematoda (6 758)
- Phylum Nematomorpha (5)
- Phylum Nemertea (1 332)
- Phylum Nemertina represented as Nemertea
- Phylum Nemertini accepted as Nemertea
- Phylum Orthonectida (24)
- Phylum Pentastomida accepted as Pentastomida
- Phylum Phoronida (13)
- Phylum Placozoa (4)
- Phylum Platyhelminthes (13 493)
- Phylum Pogonophora accepted as Siboglinidae Caullery, 1914
- Phylum Porifera (9 470)
- Phylum Priapulida (22)
- Phylum Rotatoria accepted as Rotifera
- Phylum Rotifera (208)
- Phylum Sipunculida accepted as Sipuncula
- Phylum Tardigrada (263)
- Phylum Xenacoelomorpha (437)
- Kingdom Archaea (117)
- Kingdom Bacteria (2 223)
- Kingdom Chromista (20 790)
- Kingdom Fungi (1 432)
- Kingdom Monera represented as Bacteria
- Kingdom Plantae (10 581)
- Kingdom Protozoa (766)
- Kingdom Viruses (115)
