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 (247 578)
- Kingdom Animalia (211 542)
- Subkingdom Animalia incertae sedis
- Subkingdom Metazoa accepted as Animalia
- Phylum Acanthocephala (516)
- Phylum Annelida (14 107)
- Phylum Arthropoda (59 758)
- Phylum Aschelminthes
- Phylum Brachiopoda (408)
- Phylum Bryozoa (6 545)
- Phylum Cephalorhyncha
- Phylum Chaetognatha (132)
- Phylum Chordata (24 096)
- Phylum Cnidaria (12 578)
- Phylum Ctenophora (184)
- Phylum Cycliophora (2)
- Phylum Dicyemida (122)
- Phylum Echinodermata (7 646)
- 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 (52 040)
- Subphylum Aculifera
- Subphylum Conchifera
- Subphylum Placophora accepted as Polyplacophora
- Superclass Aplacophora
- Class Amphineura accepted as Aculifera
- Class Bivalvia (8 543)
- Class Caudofoveata (143)
- Class Cephalopoda (859)
- Class Conchifera accepted as Bivalvia
- Class Gastropoda (40 481)
- Subclass Angiogastropoda represented as Gastropoda
- Subclass Apogastropoda
- Subclass Caenogastropoda (26 434)
- Subclass Gastropoda incertae sedis (1)
- Subclass Heterobranchia (8 998)
- Subclass Neomphaliones accepted as Vetigastropoda
- Subclass Neritimorpha (245)
- Subclass Orthogastropoda represented as Gastropoda
- Subclass Patellogastropoda (360)
- Superfamily Eoacmaeoidea T. Nakano & Ozawa, 2007 accepted as Lottioidea Gray, 1840
- Superfamily Lottioidea Gray, 1840 (258)
- Family Acmaeidae Forbes, 1850 (4)
- Family Eoacmaeidae T. Nakano & Ozawa, 2007 (14)
- Family Erginidae A. V. Chernyshev, 2018 accepted as Rhodopetalidae Lindberg, 1981
- Family Lepetidae Gray, 1850 (21)
- Genus Bathylepeta Moskalev, 1977 (2)
- Genus Cryptobranchia Middendorff, 1851 accepted as Lepeta Gray, 1842
- Genus Dallia Jeffreys, 1883 accepted as Lepeta Gray, 1842
- Genus Iothia Forbes, 1849 (4)
- Genus Lepeta Gray, 1842 (4)
- Genus Limalepeta Moskalev, 1977 (1)
- Genus Maoricrater Dell, 1956 (1)
- Genus Propilidium Forbes & Hanley, 1849 (8)
- Species Propilidium ancyloides (Forbes, 1840) accepted as Propilidium exiguum (W. Thompson, 1844)
- Species Propilidium aquitanense Locard, 1886 accepted as Lepetella laterocompressa (de Rayneval & Ponzi, 1854) †
- Species Propilidium bavayi Dautzenberg & H. Fischer, 1896 accepted as Propilidium exiguum (W. Thompson, 1844)
- Species Propilidium compressum Jeffreys, 1883
- Species Propilidium crossei Dautzenberg & H. Fischer, 1896 accepted as Propilidium exiguum (W. Thompson, 1844)
- Species Propilidium curumim Leal & Simone, 1998
- Species Propilidium elegans A. E. Verrill, 1884
- Species Propilidium exiguum (W. Thompson, 1844)
- Species Propilidium lissocona (Dall, 1927)
- Species Propilidium moskalevi Chernyshev, 2024
- Species Propilidium pelseneeri Thiele, 1912
- Species Propilidium pertenue Jeffreys, 1883 accepted as Copulabyssia tenuis (Monterosato, 1880)
- Species Propilidium reticulatum (A. E. Verrill, 1885)
- Species Propilidium reticulatum Moskalev, 1977 accepted as Propilidium moskalevi Chernyshev, 2024
- Species Propilidium scabrosum Jeffreys, 1883 accepted as Propilidium exiguum (W. Thompson, 1844)
- Species Propilidium tasmanicum (Pilsbry, 1895)
- Species Propilidium tenue Monterosato, 1880 accepted as Copulabyssia tenuis (Monterosato, 1880)
- Genus Rostrisepta G. Seguenza, 1866 accepted as Propilidium Forbes & Hanley, 1849
- Genus Sagamilepeta Okutani, 1987 (1)
- Family Lottiidae Gray, 1840 (168)
- Family Neolepetopsidae J. H. McLean, 1990 (18)
- Family Patelloididae Chapman & Gabriel, 1923 accepted as Patelloidini Chapman & Gabriel, 1923
- Family Pectinodontidae Pilsbry, 1891 (26)
- Family Propilidiidae accepted as Lepetidae Gray, 1850
- Family Rhodopetalidae Lindberg, 1981 (7)
- Family Tecturidae J. E. Gray, 1847 accepted as Tecturinae J. E. Gray, 1847
- Superfamily Nacelloidea Thiele, 1891 accepted as Patelloidea Rafinesque, 1815
- Superfamily Neolepetopsoidea J. H. McLean, 1990 accepted as Lottioidea Gray, 1840
- Superfamily Patelloidea Rafinesque, 1815 (102)
- 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 (1 335)
- 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 (13 497)
- Phylum Pogonophora accepted as Siboglinidae Caullery, 1914
- Phylum Porifera (9 475)
- Phylum Priapulida (22)
- Phylum Rotatoria accepted as Rotifera
- Phylum Rotifera (219)
- Phylum Sipunculida accepted as Sipuncula
- Phylum Tardigrada (263)
- Phylum Xenacoelomorpha (437)
- Kingdom Archaea (117)
- Kingdom Bacteria (2 223)
- Kingdom Chromista (20 791)
- Kingdom Fungi (1 432)
- Kingdom Monera represented as Bacteria
- Kingdom Plantae (10 581)
- Kingdom Protozoa (766)
- Kingdom Viruses (115)
