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
- Class Annelida (awaiting allocation)
- Class Clitellata
- Class Machaeridia
- Class Myzostomaria
- Class Polychaeta
- Subclass Echiura
- Subclass Errantia
- Order Amphinomida
- Order Eunicida
- Order Phyllodocida
- Family Acoetidae Kinberg, 1856
- Family Alciopidae Ehlers, 1864
- Family Antonbruunidae Fauchald, 1977
- Family Antonbruuniidae Auct. accepted as Antonbruunidae Fauchald, 1977
- Family Aphroditidae Malmgren, 1867
- Family Aphroditoidea (awaiting allocation)
- Family Calamyzidae Hartmann-Schröder, 1971 accepted as Syllidae Grube, 1850
- Family Chrysopetalidae Ehlers, 1864
- Family Eulepethidae Chamberlin, 1919
- Family Fossundecimidae Thompson, 1979 †
- Family Glyceridae Grube, 1850
- Family Goniadidae Kinberg, 1866
- Family Hesionidae Grube, 1850
- Family Ichthyotomidae Eisig, 1906
- Family Iopsilidae accepted as Iospilidae Bergström, 1914
- Family Iospilidae Bergström, 1914
- Family Iphionidae Kinberg, 1856
- Family Isopilidae accepted as Iospilidae Bergström, 1914
- Family Kynephoridae Ehlers, 1920 accepted as Pilargidae de Saint-Joseph, 1899
- Family Lacydoniidae Bergström, 1914
- Family Levidoridae
- Family Lopadorhynchidae accepted as Lopadorrhynchidae Claparède, 1868
- Family Lopadorrhynchidae Claparède, 1868
- Family Microphthalmidae Hartmann-Schröder, 1971
- Family Nautilinidae Miura & Laubier, 1989 accepted as Nautiliniellidae Miura & Laubier, 1990
- Family Nautiliniellidae Miura & Laubier, 1990
- Family Nephthyidae [Polychaeta, misspelling of Nephtyidae] accepted as Nephtyidae Grube, 1850
- Family Nephtyidae Grube, 1850
- Family Nereidae Savigny, 1820 accepted as Nereididae Blainville, 1818
- Family Nereididae Blainville, 1818
- Family Notophycidae Knox & Cameron, 1970 accepted as Nereididae Blainville, 1818
- Family Palmyridae Kinberg, 1858 accepted as Aphroditidae Malmgren, 1867
- Family Paralacydoniidae Pettibone, 1963
- Family Peisidicidae accepted as Pholoidae Kinberg, 1858
- Family Pholoidae Kinberg, 1858
- Family Pholoididae Fauchald, 1977 accepted as Sigalionidae Malmgren, 1867
- Family Phyllodocida incertae sedis
- Family Phyllodocidae Örsted, 1843
- Genus Anaitides Czerniavsky, 1882 accepted as Phyllodoce Lamarck, 1818
- Genus Anaitis Malmgren, 1865 accepted as Paranaitis Southern, 1914
- Genus Aniatis Panceri, 1875 accepted as Paranaitis Southern, 1914
- Genus Austrophyllum Bergström, 1914
- Genus Bergstroemia Banse, 1973 accepted as Austrophyllum Bergström, 1914
- Genus Carobia Quatrefages, 1866 accepted as Nereiphylla Blainville, 1828
- Genus Chaetoparia Malmgren, 1867
- Genus Cirraria Sveshnikov, 1959
- Genus Cirrodoce Hartman & Fauchald, 1971 accepted as Clavadoce Hartman, 1936
- Genus Clavadoce Hartman, 1936
- Genus Compsanaitis Hutchings & Murray, 1984 accepted as Paranaitis Southern, 1914
- Genus Ctenophoricola San Martín et al., 2021
- Genus Dubiomystides Bergström, 1914
- Genus Eleone Massalongo, 1855 † accepted as Eteone Savigny, 1818
- Genus Endovermis Jimi, Kimura, Ogawa & Kajihara, 2020
- Genus Eracia Quatrefages, 1866
- Genus Eteone Savigny, 1818
- Genus Eteonella McIntosh, 1874 accepted as Eteone Savigny, 1818
- Genus Eteonides Hartmann-Schröder, 1960 accepted as Hesionura Hartmann-Schröder, 1958
- Genus Etiona Westwood in Blyth, 1840 † accepted as Eteone Savigny, 1818
- Genus Eulalalia accepted as Eulalia Savigny, 1822
- Genus Eulalia Savigny, 1822
- Genus Eulalides Czerniavsky, 1882
- Genus Eulallia Lankester, 1866 accepted as Eulalia Savigny, 1822
- Genus Eumenia Quatrefages, 1866
- Genus Eumida Malmgren, 1865
- Genus Eumidea Moore, 1903 accepted as Eumida Malmgren, 1865
- Genus Eumidia Verrill, 1873 accepted as Eumida Malmgren, 1865
- Genus Eunomia Risso, 1826
- Genus Eunotophyllum Czerniavsky, 1882 accepted as Notophyllum Örsted, 1843
- Genus Euphylla Knox, 1960 accepted as Paranaitis Southern, 1914
- Genus Eutalia Westwood in Blyth, 1840 accepted as Eulalia Savigny, 1822
- Genus Galapagomystides Blake, 1985
- Genus Genetyllis Malmgren, 1865 accepted as Nereiphylla Blainville, 1828
- Species Genetyllis bermudae (Verrill, 1900)
- Species Genetyllis brevis Ehlers, 1901 accepted as Prochaetoparia brevis (Ehlers, 1901)
- Species Genetyllis caeca Averincev, 1972
- Species Genetyllis castanea (Marenzeller, 1879)
- Species Genetyllis citrina McIntosh, 1907
- Species Genetyllis dohrnii (Langerhans, 1880)
- Species Genetyllis gracilis (Kinberg, 1866)
- Species Genetyllis hibernica McIntosh, 1908
- Species Genetyllis lutea Malmgren, 1865 accepted as Nereiphylla lutea (Malmgren, 1865)
- Species Genetyllis macrophthalma Hartmann-Schröder, 1979
- Species Genetyllis nana (de Saint Joseph, 1908)
- Species Genetyllis nigrimaculata (Moore, 1909) accepted as Bergstroemia nigrimaculata (Moore, 1909)
- Species Genetyllis oculata McIntosh, 1885
- Species Genetyllis polyphylla (Ehlers, 1897)
- Species Genetyllis rubiginosa (de Saint-Joseph, 1888) accepted as Nereiphylla rubiginosa (Saint-Joseph, 1888)
- Species Genetyllis tuberculata (Bobretzky, 1868)
- Species Genetyllis undulaticirris Averincev, 1972
- Species Genetyllis undulaticirrus Averincev, 1972
- Species Genetyllis violacea Hartmann-Schröder, 1965
- Genus Globidoce Bergström, 1914 accepted as Phyllodoce Lamarck, 1818
- Genus Hesionura Hartmann-Schröder, 1958
- Genus Hesperophyllum Chamberlin, 1919
- Genus Hypereteone Bergström, 1914
- Genus Hypocirrus Giard, 1913
- Genus Hypoeulalia Bergström, 1914 accepted as Eulalia Savigny, 1822
- Genus Kinbergia Quatrefages, 1866
- Genus Lepadorhynchus Schmarda, 1861 accepted as Phyllodoce Lamarck, 1818
- Genus Levisettius Thompson, 1979 †
- Genus Lugia Quatrefages, 1866
- Genus Macrophyllum Schmarda, 1861 accepted as Notophyllum Örsted, 1843
- Genus Mesoeulalia Czerniavsky, 1882
- Genus Mesomystides Czerniavsky, 1882 accepted as Mystides Théel, 1879
- Genus Myriana Savigny, 1822
- Genus Myriane Westwood in Blyth, 1840
- Genus Myriocyclum Grube, 1880
- Genus Mysomystides McIntosh, 1922 accepted as Mystides Théel, 1879
- Genus Mysta Malmgren, 1865 accepted as Eteone Savigny, 1818
- Genus Mystides Théel, 1879
- Genus Neophyllum Eisig, 1910 accepted as Notophyllum Örsted, 1843
- Genus Nerciphylla Lamarck, 1838 accepted as Nereiphylla Blainville, 1828
- Genus Nereidophylla Agassiz, 1846 accepted as Nereiphylla Blainville, 1828
- Genus Nereiphilla Verany, 1846 accepted as Nereiphylla Blainville, 1828
- Genus Nereiphylla Blainville, 1828
- Genus Nereiphylle Couch, 1849 accepted as Nereiphylla Blainville, 1828
- Genus Nereiphyllis Gervais, 1846 accepted as Nereiphylla Blainville, 1828
- Genus Nipponophyllum Imajima & Hartman, 1964 accepted as Notophyllum Örsted, 1843
- Genus Notalia Bergström, 1914 accepted as Eulalia Savigny, 1822
- Genus Nothis Pruvot, 1883
- Genus Notophyllum Örsted, 1843
- Genus Notophylum accepted as Notophyllum Örsted, 1843
- Genus Paraeulalia Czerniavsky, 1882 accepted as Notophyllum Örsted, 1843
- Genus Paranaitis Southern, 1914
- Genus Parateone Hartmann-Schröder, 1975
- Genus Pareteone Hartmann-Schröder, 1975 accepted as Paranaitis Southern, 1914
- Genus Phillodoce Verany, 1846
- Genus Phillodoce Grube, 1878 accepted as Phyllodoce Lamarck, 1818
- Genus Phylladoce Audouin, 1828
- Genus Phyllidoce Risso, 1826 accepted as Phyllodoce Lamarck, 1818
- Genus Phyllodce Whitelegge, 1889
- Genus Phyllodice Blainville, 1825
- Genus Phyllodoa Schweigger, 1820
- Genus Phyllodoca Blainville, 1829
- Genus Phyllodoce Lamarck, 1818
- Genus Phyllodoce Ranzani, 1817
- Genus Phyllodocia Dalyell, 1853
- Genus Phyllodocides Nolte, 1941
- Genus Phyllodore Giebel, 1863
- Genus Phyllotethys La Greca, 1949
- Genus Phyllouschakovius Blake, 1988 accepted as Phyllodoce Lamarck, 1818
- Genus Phylodoce Herklots, 1862
- Genus Pirakia Bergström, 1914 accepted as Eumida Malmgren, 1865
- Genus Porroa Quatrefages, 1866
- Genus Prochaetoparia Bergström, 1914
- Genus Prophyllodoce Hartman, 1966 accepted as Phyllodoce Lamarck, 1818
- Genus Protomystidella Hartmann-Schröder, 1983 accepted as Protomystides Czerniavsky, 1882
- Genus Protomystides Czerniavsky, 1882
- Genus Pseudeulalia Eliason, 1962 accepted as Protomystides Czerniavsky, 1882
- Genus Pseudomystides Bergström, 1914
- Genus Pseudonotophyllum Czerniavsky, 1882 accepted as Notophyllum Örsted, 1843
- Genus Pterocirrus Claparède, 1868
- Genus Pterrocirrus Hempelmann in Kükenthal & Krumbach, 1931 accepted as Pterocirrus Claparède, 1868
- Genus Sige Malmgren, 1865
- Genus Sphaerodoce Bergström, 1914 accepted as Phyllodoce Lamarck, 1818
- Genus Steggoa Bergström, 1914 accepted as Eulalia Savigny, 1822
- Genus Trachelophyllum Levinsen, 1883 accepted as Notophyllum Örsted, 1843
- Genus Vitiazia Uschakov, 1953 accepted as Sige Malmgren, 1865
- Genus Vitiaziphyllum Uschakov, 1972 accepted as Eumida Malmgren, 1865
- Genus Zverlinum Averintsev, 1972 accepted as Phyllodoce Lamarck, 1818
- Family Pilargidae de Saint-Joseph, 1899
- Family Pisionidae Southern, 1914 accepted as Sigalionidae Malmgren, 1867
- Family Polynoidae Malmgren, 1867
- Family Polyodontidae Buchanan, 1894 accepted as Acoetidae Kinberg, 1856
- Family Pontodoridae Bergström, 1914
- Family Sigalionidae Malmgren, 1867
- Family Sphaerodoridae Malmgren, 1867
- Family Syllidae Grube, 1850
- Family Talehsapiidae Misra, 1999 accepted as Pilargidae de Saint-Joseph, 1899
- Family Tomopteridae Johnston, 1865
- Family Typhloscolecidae Uljanin, 1878
- Family Yndolaciidae Støp-Bowitz, 1987
- Order Aciculata
- Order Amphinomorpha
- Order Athecanephria
- Order Canalipalpata
- Order Capitellida
- Order Chaetopterida
- Order Cirratulida
- Order Cossurida
- Order Ctenodrilida
- Order Dinophilida
- Order Errantida †
- Order Eunicemorpha
- Order Flabelligerida
- Order Magelonida
- Order Myzostomida
- Order Nerillida
- Order Opheliida
- Order Orbiniida
- Order Oweniida
- Order Phyllodocemorpha
- Order Poeobiida
- Order Polychaeta (awaiting allocation)
- Order Polychaeta incertae sedis
- Order Polygordiida
- Order Protodrilida
- Order Psammodrilida
- Order Pseudocirratulida
- Order Sabellida
- Order Scolecida
- Order Serpulimorpha
- Order Spintherida
- Order Spiomorpha
- Order Spionida
- Order Sternaspida
- Order Terebellida
- Order Terebellomorpha
- Order Thecanephria
- Genus Echinokleptus Muir, Botting, Lefebvre, Upton & Zhang, 2019 †
- Genus Kootenayscolex Nanglu & Caron, 2018 †
- Genus Pseudoarenicola Liu & Yang, 1991 †
- Family Lobatocerebridae Rieger, 1980
- Genus Aulozoon Gehling & Runnegar, 2022 †
- Genus Gabavermis Troppenz, 2013 †
- Genus Lapillitubus Belaústegui & Belaústegui, 2017 †
- Genus Meanderovaleichnus Cónsole-Gonella & Aceñolaza, 2014 †
- Genus Shaihuludia Kimmig, LaVine, Schiffbauer, Egenhoff, Shelton & Leibach, 2023 †
- Genus Spitiprion Tonarová, Suttner, & Hints, 2024 †
- Genus Taonurus Saporta & Marion, 1881 †
- Genus Xiaoshibachaeta Yang, Aguado, Yang & Bleidorn, 2024 †
- 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
- 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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