Between brackets is the number of accepted species
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2 Shows the number of accepted species within the taxon
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- Biota
- Kingdom Animalia
- Phylum Acanthocephala
- Phylum Agmata †
- Phylum Animalia (awaiting allocation)
- Phylum Animalia incertae sedis
- Phylum Annelida
- Phylum Arthropoda
- Phylum Brachiopoda
- Phylum Bryozoa
- Phylum Cephalorhyncha incertae sedis
- Phylum Chaetognatha
- Phylum Chitinozoa †
- Phylum Chordata
- Phylum Cnidaria
- Phylum Ctenophora
- Phylum Cycliophora
- Phylum Cycloneuralia incertae sedis
- Phylum Ecdysozoa incertae sedis †
- Phylum Echinodermata
- Phylum Entoprocta
- Phylum Gastrotricha
- Phylum Gnathostomulida
- Phylum Hemichordata
- Phylum Hyolitha †
- Phylum Kinorhyncha
- Phylum Lobopoda †
- Phylum Loricifera
- Phylum Micrognathozoa
- Phylum Mollusca
- Phylum Monoblastozoa accepted as Animalia incertae sedis
- Phylum Nematoda
- Phylum Nematomorpha
- Phylum Nemertea
- Phylum Onychophora
- Phylum Orthonectida
- Phylum Phoronida
- Phylum Placozoa
- Phylum Platyhelminthes
- Phylum Pogonophora accepted as Siboglinidae Caullery, 1914
- Phylum Porifera
- Class Archaeocyatha †
- Class Archaeocyathea † accepted as Archaeocyatha †
- Class Calcarea
- Class Calcispongea
- Class Demospongea
- Class Heteractinida †
- Class Hexactinellida
- Order Amphidiscosa
- Order Amphidiscosida
- Order Aulocalycoida
- Order Brooksellida † accepted as Reticulosa †
- Order Dictyida †
- Order Hemidiscosa †
- Order Hexactinellida (awaiting allocation)
- Order Hexactinellida incertae sedis
- Order Hexactinosa
- Order Hexactinosida
- Order Hyalospongea (awaiting allocation) †
- Order Hyalospongiae (awaiting allocation)
- Order Lychniscosa accepted as Lychniscosida
- Order Lychniscosida
- Order Lychniskida †
- Order Lyssacinosa accepted as Lyssacinosida
- Order Lyssacinosida
- Family Alcyoncellidae De Laubenfels, 1936 accepted as Euplectellidae Gray, 1867
- Family Brachiospongiidae †
- Family Caulophacidae Ijima, 1903
- Family Euplectellidae Gray, 1867
- Family Keriogastrospongiidae Wu, 1989 †
- Family Leucopsacadidae
- Family Leucopsacasidae Ijima, 1927 accepted as Leucopsacidae Ijima, 1903
- Family Leucopsacasiidae accepted as Leucopsacidae Ijima, 1903
- Family Leucopsacidae Ijima, 1903
- Family Lumectospongiidae Rigby & Chatterton, 1989 †
- Family Lyssacinosida (awaiting allocation)
- Family Lyssacinosida incertae sedis Tabachnick, 2002
- Family Malumispongiidae Rigby, 1967 †
- Family Placoplegmidae De Laubenfels, 1936 accepted as Euplectellidae Gray, 1867
- Family Pseudolanciculidae Botting, 2005 †
- Family Pyruspongiidae Rigby, 1971 †
- Family Rosselidae accepted as Rossellidae Schulze, 1885
- Family Rossellidae Schulze, 1885
- Genus Acanthanus Schulze, 1897 accepted as Acanthascus Schulze, 1886
- Genus Acanthascus Schulze, 1886
- Genus Acanthascus Schulze, 1885 accepted as Acanthascus Schulze, 1886
- Genus Acanthosaccus Schulze, 1899
- Genus Anaulosoma Kirkpatrick, 1907 accepted as Rossella Carter, 1872
- Genus Anoxycalyx Kirkpatrick, 1907
- Genus Anthuscus
- Genus Aphorme Schulze, 1899
- Genus Asconema Schmidt, 1880 accepted as Asconema Kent, 1870
- Genus Asconema Kent, 1870
- Genus Askonema Kent, 1870 accepted as Asconema Kent, 1870
- Genus Asoonema Hentschel, 1929 accepted as Asconema Kent, 1870
- Genus Aulascus Schulze, 1886 accepted as Sympagella Schmidt, 1870
- Genus Aulochone Schulze, 1886 accepted as Crateromorpha Gray, 1872
- Genus Aulochonen Schulze, 1885
- Genus Aulophacus accepted as Caulophacus Schulze, 1886
- Genus Aulorossella Kirkpatrick, 1907 accepted as Rossella Carter, 1872
- Genus Aulosaccus Ijima, 1896
- Genus Balanella Schulze, 1887 accepted as Caulophacus Schulze, 1886
- Genus Balanites Schulze, 1886 accepted as Caulophacus Schulze, 1886
- Genus Bathydorus Schulze, 1886
- Genus Bathydorus Schulze, 1885 accepted as Bathydorus Schulze, 1886
- Genus Caledochone Tabachnick & Lévi, 2002 accepted as Crateromorpha Gray, 1872
- Genus Calycosaccus Schulze, 1899 accepted as Aulosaccus Ijima, 1896
- Genus Calycosilva Lendenfeld, 1915 accepted as Sympagella Schmidt, 1870
- Genus Calycosoma Schulze, 1899
- Genus Caulodiscus Ijima, 1927 accepted as Caulophacus Schulze, 1886
- Genus Caulophacella Lendenfeld, 1915 accepted as Caulophacus Schulze, 1886
- Genus Caulophacus Schulze, 1886
- Genus Caulophacus Schulze, 1885 accepted as Caulophacus Schulze, 1886
- Genus Caulophocus Carus, 1886 accepted as Caulophacus Schulze, 1886
- Genus Craterochone Tabachnick in Hooper & Van Soest, 2002
- Genus Crateromorpha Gray, 1872
- Genus Doconesthes Topsent, 1928
- Genus Eoghanospongia Botting, Candela, Carrio & Crighton, 2020 †
- Genus Gymnorossella Topsent, 1916 accepted as Rossella Carter, 1872
- Species Gymnorossella inermis Topsent, 1916 accepted as Rossella inermis (Topsent, 1916)
- Genus Holtenia Schmidt, 1870 accepted as Vazella Gray, 1870
- Genus Hyalascus Ijima, 1896
- Genus Lanuginella Schmidt, 1870
- Genus Lanugonychia Lendenfeld, 1915
- Genus Lophocalyx Schulze, 1887
- Genus Matteolaspongia Botting, Zhang & Muir, 2018 †
- Genus Mellonympha Schulze, 1897
- Genus Melonympha Ijima, 1898 accepted as Mellonympha Schulze, 1897
- Genus Neopsacas Tabachnick in Hooper & Van Soest, 2002
- Genus Nodastrella Dohrmann, Göcke, Reed & Janussen, 2012
- Genus Nubes Reiswig, Dohrmann & Kelly in Reiswig et al., 2021
- Genus Oxydiscus Janussen, Tabachnick & Tendal, 2004 accepted as Caulophacus Schulze, 1886
- Genus Palaeorossella Li, Janussen, Zhan & Reitner, 2019 †
- Genus Pleorhabdus Schulze, 1887 accepted as Caulophacus Schulze, 1886
- Genus Polya Stechow, 1921 accepted as Lophocalyx Schulze, 1887
- Genus Polylophus Schulze, 1886 accepted as Lophocalyx Schulze, 1887
- Genus Polylophus Schulze, 1887
- Genus Polyrhabdus Schulze, 1886 accepted as Caulophacus Schulze, 1886
- Genus Rhabdocalptus Carus, 1888 accepted as Rhabdocalyptus Schulze, 1886
- Genus Rhabdocalyptus Schulze, 1886
- Genus Rhabdocalyptus Schulze, 1885 accepted as Rhabdocalyptus Schulze, 1886
- Genus Rhabodocalyptus Ijima, 1898 accepted as Rhabdocalyptus Schulze, 1886
- Genus Rhapdocalyptus Schulze, 1886 accepted as Rhabdocalyptus Schulze, 1886
- Genus Rosella accepted as Rossella Carter, 1872
- Genus Rossella Carter, 1872
- Genus Schaudinnia Schulze, 1900
- Genus Scolymastra Topsent, 1916 accepted as Anoxycalyx Kirkpatrick, 1907
- Genus Scyphidium Schulze, 1900
- Genus Shouzhispongia Botting, Janussen, Zhang & Muir, 2020 †
- Genus Staurocalyptus Ijima, 1897
- Genus Sympagella Schmidt, 1870
- Genus Symplectella Dendy, 1924
- Genus Trichasterina Schulze in Roemer & Schaudinn, 1900
- Genus Vazella Gray, 1870
- Genus Vitrollula Ijima, 1898
- Family Stauractinellidae De Laubenfels, 1955 †
- Family Sympagellidae De Laubenfels, 1936 accepted as Rossellidae Schulze, 1885
- Family Toomeyospongiidae †
- Order Lyssakida †
- Order Reticulosa †
- Order Sphinctozoa
- Order Verticillitiida
- Class Hyalospongea accepted as Hexactinellida
- Class Hyalospongiae accepted as Hexactinellida
- Class Porifera (awaiting allocation)
- Class Spongiomorpha
- Class Stromatoporata accepted as Stromatoporoidea †
- Class Stromatoporoidea †
- Genus Achilleum Oken, 1815
- Genus Calliospongia Chen, Porras, Ma, Hou & Wörheide, 2023 †
- Genus Celtispongia Peel, 2019 †
- Genus Conciliospongia Botting, Zhang & Muir, 2017 †
- Genus Heteractenigma Botting & Zhang, 2013 †
- Genus Iniquispongia Senowbari-Daryan, Fürsich & Rashidi, 2020 †
- Genus Palaeomillepora Gabilly & Lafuste, 1957, nom. nud. † accepted as Palaeomillepora Gabilly & Lafuste, 1957 †
- Genus Palaeomillepora Gabilly & Lafuste, 1957 †
- Genus Perturbatacrusta Schlagintweit & Gawlick, 2011 †
- Genus Portalia Walcott, 1918 †
- Genus Sanningasoqia Peel, 2019 †
- Genus Seqineqia Peel, 2018 †
- Genus Seriespongia Senowbari-Daryan, Fürsich & Rashidi, 2020 †
- Genus Siphydora James-Clark, 1865
- Genus Sisamatispongia Peel, 2018 †
- Genus Sulukispicula Peel, 2019 †
- Genus Tallitaniqa Peel, 2018 †
- Genus Vasispongia Tang & Xiao in Tang et al., 2019 †
- Phylum Priapula accepted as Priapulida
- Phylum Priapulida
- Phylum Problematica † accepted as Animalia incertae sedis
- Phylum Rhombozoa
- Phylum Rotifera
- Phylum Scalidophora incertae sedis
- Phylum Sipuncula
- Phylum Tardigrada
- Phylum Trace fossils †
- Phylum Vendobionta †
- Phylum Vestimentifera accepted as Siboglinidae Caullery, 1914
- Phylum Vetulicolia †
- Phylum Vinctiplicata incertae sedis †
- Phylum Xenacoelomorpha
- Genus Trilobocaris Pribyl, 1953 †
- Kingdom Archaea
- Kingdom Bacteria
- Kingdom Chromista
- Kingdom Fungi
- Kingdom Plantae
- Kingdom Protista accepted as Protozoa
- Kingdom Protozoa
- Kingdom Viruses
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