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)
- 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)
- Subphylum Silicea
- Class Calcarea (831)
- Class Calcispongia accepted as Calcarea
- Class Calcispongiae accepted as Calcarea
- Class Demospongiae (7 800)
- Subclass Ceractinomorpha accepted as Demospongiae
- Subclass Cornacuspongia accepted as Demospongiae
- Subclass Democlavia accepted as Heteroscleromorpha
- Subclass Haploscleromorpha accepted as Heteroscleromorpha
- Subclass Heteroscleromorpha (6 980)
- Order Agelasida (74)
- Order Ancorinida accepted as Tetractinellida
- Order Astrophorida accepted as Astrophorina
- Order Axinellida (546)
- Order Biemnida (108)
- Order Bubarida (157)
- Order Ceratoporellida accepted as Agelasida
- Order Choristida accepted as Tetractinellida
- Order Clionaida (215)
- Order Craniellida accepted as Tetractinellida
- Order Desmacellida (37)
- Order Desmacidonitida accepted as Heteroscleromorpha
- Order Hadromerida accepted as Heteroscleromorpha
- Order Halichondrida accepted as Heteroscleromorpha
- Order Haplosclerida (1 157)
- Suborder Haplosclerina accepted as Haplosclerida
- Suborder Petrosina accepted as Haplosclerida
- Family Adociidae Laubenfels, 1936 accepted as Chalinidae Gray, 1867
- Family Akaidae Alander, 1942 accepted as Phloeodictyidae Carter, 1882
- Family Calcifibrospongiidae Hartman, 1979 (1)
- Family Callyspongiidae Laubenfels, 1936 (220)
- Family Cavochalinidae Carter, 1875 accepted as Callyspongiidae Laubenfels, 1936
- Family Chalinidae Gray, 1867 (510)
- Family Gelliadae Gray, 1872 accepted as Chalinidae Gray, 1867
- Family Gelliidae Gray, 1872 accepted as Chalinidae Gray, 1867
- Family Haliclonidae de Laubenfels, 1932 accepted as Chalinidae Gray, 1867
- Family Niphatidae van Soest, 1980 (162)
- Family Oceanapiidae van Soest, 1980 accepted as Phloeodictyidae Carter, 1882
- Family Petrosiidae van Soest, 1980 (129)
- Genus Acanthostrongylophora Hooper, 1984 (2)
- Genus Chalinohaphis accepted as Petrosia Vosmaer, 1885
- Genus Chalinorhaphis Lendenfeld, 1887 accepted as Petrosia Vosmaer, 1885
- Genus Densa de Laubenfels, 1934 accepted as Neopetrosia de Laubenfels, 1949
- Genus Neopetrosia de Laubenfels, 1949 (33)
- Species Neopetrosia carbonaria (Lamarck, 1814)
- Species Neopetrosia chaliniformis (Thiele, 1899)
- Species Neopetrosia compacta (Ridley & Dendy, 1886)
- Species Neopetrosia contignata (Thiele, 1899)
- Species Neopetrosia cristata Vicente, Ríos, Zea & Toonen, 2019
- Species Neopetrosia cylindrica (Lamarck, 1815)
- Species Neopetrosia delicatula (Dendy, 1905)
- Species Neopetrosia dendrocrevacea Vicente, Ríos, Zea & Toonen, 2019
- Species Neopetrosia densissima (Wilson, 1904)
- Species Neopetrosia dominicana (Pulitzer-Finali, 1986)
- Species Neopetrosia dutchi Van Soest, Meesters & Becking, 2014
- Species Neopetrosia eructans Sim-Smith, Hickman & Kelly, 2021
- Species Neopetrosia eurystomata Van Soest, Meesters & Becking, 2014
- Species Neopetrosia exigua (Kirkpatrick, 1900) accepted as Neopetrosia chaliniformis (Thiele, 1899)
- Species Neopetrosia granulosa (Wilson, 1925)
- Species Neopetrosia halichondrioides (Dendy, 1905)
- Species Neopetrosia longleyi (De Laubenfels, 1932) accepted as Neopetrosia subtriangularis (Duchassaing, 1850)
- Species Neopetrosia massa (Ridley & Dendy, 1886)
- Species Neopetrosia ovata Van Soest, Meesters & Becking, 2014
- Species Neopetrosia pandora de Laubenfels, 1954 accepted as Neopetrosia chaliniformis (Thiele, 1899)
- Species Neopetrosia perforata (Lévi, 1959)
- Species Neopetrosia problematica (de Laubenfels, 1930)
- Species Neopetrosia proxima (Duchassaing & Michelotti, 1864)
- Species Neopetrosia rava (Thiele, 1899)
- Species Neopetrosia retiderma (Dendy, 1922)
- Species Neopetrosia rosariensis (Zea & Rützler, 1983)
- Species Neopetrosia sapra (de Laubenfels, 1954)
- Species Neopetrosia seriata (Hentschel, 1912)
- Species Neopetrosia sigmafera Vicente, Ríos, Zea & Toonen, 2019
- Species Neopetrosia similis (Ridley & Dendy, 1886)
- Species Neopetrosia subtriangularis (Duchassaing, 1850)
- Species Neopetrosia sulcata Santos, Sandes, Cabral & Pinheiro, 2016
- Species Neopetrosia tenera (Carter, 1887)
- Species Neopetrosia truncata (Ridley & Dendy, 1886) accepted as Petrosia (Petrosia) truncata Ridley & Dendy, 1886
- Species Neopetrosia tuberosa (Dendy, 1922)
- Species Neopetrosia vanilla (de Laubenfels, 1930)
- Species Neopetrosia zumi (Ristau, 1978)
- Genus Petrosia Vosmaer, 1885 (59)
- Genus Pharetronema Sollas, 1879 accepted as Cribrochalina Schmidt, 1870
- Genus Quepanetsal de Laubenfels, 1954 accepted as Xestospongia de Laubenfels, 1932
- Genus Rayneria Nardo, 1833 accepted as Petrosia (Petrosia) Vosmaer, 1885
- Genus Schmidtia Balsamo Crivelli, 1863 accepted as Petrosia Vosmaer, 1885
- Genus Strongylophora Dendy, 1905 accepted as Petrosia (Strongylophora) Dendy, 1905
- Genus Xestospongia de Laubenfels, 1932 (35)
- Family Phloeodictyidae Carter, 1882 (131)
- Family Renieridae Schmidt, 1870 accepted as Chalinidae Gray, 1867
- Family Tubulodigitidae Carter, 1875 accepted as Callyspongiidae Laubenfels, 1936
- Subfamily Gelliinae Gray, 1872 accepted as Chalinidae Gray, 1867
- Subfamily Renierinae Schmidt, 1870 accepted as Chalinidae Gray, 1867
- Genus Arenospicula Leal, Bispo & Hajdu, 2025 (4)
- Order Heteroscleromorpha incertae sedis (3)
- Order Merliida (43)
- Order Nepheliospongida accepted as Haplosclerida
- Order Petrosida accepted as Haplosclerida
- Order Poecillastrida accepted as Tetractinellida
- Order Poecilosclerida (2 492)
- Order Polymastiida (140)
- Order Scopalinida (40)
- Order Sphaerocladina (5)
- Order Spirastrellida accepted as Heteroscleromorpha
- Order Spirophorida accepted as Spirophorina
- Order Spongillida (7)
- Order Suberitida (534)
- Order Tethyida (220)
- Order Tetractinellida (1 192)
- Order Trachycladida (10)
- Suborder Spongillina accepted as Spongillida
- Subclass Keratosa (671)
- Subclass Monaxonida accepted as Demospongiae
- Subclass Myxospongiae accepted as Verongimorpha
- Subclass Tetractinomorpha accepted as Demospongiae
- Subclass Verongimorpha (148)
- Order Demospongiae incertae sedis (1)
- Order Gummineae accepted as Chondrosiida
- Order Halisarcida accepted as Chondrillida
- Order Lithistida accepted as Heteroscleromorpha
- Class Hexactinellida (708)
- Class Homoscleromorpha (136)
- Class Hyalospongiae accepted as Hexactinellida
- Class Porifera incertae sedis
- Class Sclerospongiae accepted as Demospongiae
- 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)
