Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         [crown] Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
           Clade neomura Cavalier-Smith, 1987
             Domain Eukaryota Chatton, 1925 - eukaryotes
               Clade discaria Cavalier-Smith, 2021
                 Clade dorsates Cavalier-Smith, 2021
                   Clade podiates Cavalier-Smith, 2012
                     [crown] Clade Amorphea Adl et al. 2012 [Simpson, Medina & Adl 2020]
                       [crown] Clade Obazoa Brown, Sharpe, Silberman, Heiss, Lang, Simpson & Roger 2013
                         [crown] Clade Opisthokonta Cavalier-Smith 1987 [Simpson & Medina 2020] - animal-fungal clade
                           Superkingdom Holozoa Lang, O'Kelly, Nerad, Gray & Burger, 2002
                             Clade filozoa Shalchian-Tabrizi, Minge, Espelund, Orr, Ruden, Jakobsen & Cavalier-Smith, 2008
                               Kingdom Animalia Linnaeus, 1758 - animals
                                 Clade Planulozoa Wallberg, Thollesson, Farris & Jondelius 2004
                                   Subkingdom Bilateria Hatschek, 1888 - bilaterians
                                     Clade Nephrozoa Jondelius, Ruiz-Trillo, Baguñà & Riutort 2002
                                       Infrakingdom Protostomia Grobben, 1908
                                         Superphylum Spiralia Schleip, 1929
                                           Clade Platytrochozoa Struck, Wey-Fabrizius, Golombek, Hering, Weigert, Bleidorn, Klebow, Iakovenko, Hausdorf, Petersen, Kück, Herlyn & Hankeln 2014
                                             Clade Lophotrochozoa Halanych, Bacheller, Aguinaldo, Liva, Hillis & Lake 1995 - lophotrochozoans
                                               Clade Trochozoa Beklemischev, 1944 - trochozoans
                                                 Phylum Annelida Lamarck, 1809 - segmented worms
                                                   Class Clitellata Michaelsen, 1919
                                                     "oligochaetous Clitellata" [paraphyletic]
                                                       Subclass Tubificata Jamieson, 1988
                                                         Order Tubificidaᵀ
                                                           [Family Tubificidaeᵀ Vejdovský, 1876 - sludge worms] see Family Naididae Ehrenberg, 1828
                                                             [Genus Abyssidrilus Erséus, 1992]
                                                             [Genus Adelodriloides Cook, 1970]
                                                             Genus Adelodrilus Cook, 1969
                                                             [Genus Ainudrilus Finogenova, 1982]
                                                             [Genus Aktedrilus Knollner, 1935]
                                                             [Genus Albanidrilus Erséus, 1992]
                                                             [Genus Amerigodrilus Holmquist, 1985]
                                                             Genus Antipodrilus Brinkhurst & Jamieson, 1971
                                                             [Genus Archaeoryctes Czerniavsky, 1880]
                                                             [Genus Atlantidrilus Erséus, 1982]
                                                             [Genus Bacescuella Hrabe, 1973]
                                                             [Genus Bacesuella Hrabě, 1973]
                                                             Genus Baikalodrilus Holmquist, 1978
                                                             Genus Baltidrilus Timm, 2013
                                                             Genus Bathydrilus Cook, 1970
                                                             [Genus Bermudrilus Erséus, 1979]
                                                             Genus Biprostatus Pinder & Brinkhurst, 2000
                                                             [Genus Blanonais Gervais, 1838, nom. dub.]
                                                             [Genus Blanonaïs Gervais, 1838]
                                                             [Genus Bohadschia Hrabě, 1971, nom. illeg.]
                                                             [Genus Bothrioneuron Stolč, 1886] see Genus Bothrioneurum Michaelsen, 1900
                                                             Genus Breviatria Pinder & Brinkhurst, 2000
                                                             [Genus Camptodrilus Eisen, 1879]
                                                             [Genus Chenidrilus Liang & Xie, 1997]
                                                             [Genus Christerius Holmquist, 1985]
                                                             Genus Clitellio Savigny, 1820
                                                             [Genus Clitellis Agassiz, 1842] see Genus Clitellio Savigny, 1820
                                                             [Genus Clitelloides Finogenova, 1985]
                                                             [Genus Coralliodrilus Erséus, 1979]
                                                             [Genus Curacaodrilus Righi & Kanner, 1979]
                                                             [Genus Discordiprostatus Baker, 1982]
                                                             [Genus Doliodrilus Erséus, 1984]
                                                             [Genus Duridrilus Erséus, 1983]
                                                             [Genus Edmondsonia Brinkhurst, 1965]
                                                             [Genus Edukemius Holmquist, 1978]
                                                             [Genus Embolocephalus Randolph, 1892]
                                                             Genus Epirodrilus Hrabě, 1930
                                                             [Genus Euilyodrilus Brinkhurst, 1963]
                                                             [Genus "Euilyodritus" Brinkhurst, 1965] see Genus Euilyodrilus Brinkhurst, 1963
                                                             [Genus Frearidrilus Dumnicka, 1987]
                                                             [Genus Giereidrilus Erséus, 1981]
                                                             [Genus Hemitubifex Eisen, 1879]
                                                             [Genus Heronidrilus Erséus, 1981]
                                                             [Genus Heterochaeta Claparède, 1863, nom. illeg.] see Genus Baltidrilus Timm, 2013
                                                             [Genus Heterodriloides Erséus, 1981]
                                                             Genus Heterodrilus Pierantoni, 1902
                                                             Genus Hrabeus Semernoy, 2004
                                                             [Genus Ilyodriloides Sokolskaya, 1983]
                                                             Genus Inanidrilus Erséus, 1979
                                                             [Genus Inennidrilus Erséus, 1992]
                                                             Genus Isochaeta Pointner, 1911, nom. illeg.
                                                             [Genus Jamiesoniella Erséus, 1981]
                                                             Genus Jolydrilus Marcus, 1965
                                                             [Genus Kaketio Righi & Kanner, 1979]
                                                             [Genus Kawamuria Stephenson, 1917]
                                                             [Genus Kopilrok Holmquist, 1985]
                                                             [Genus Krenedrilus Dumnicka, 1983]
                                                             [Genus Lamadrilus Timm, 1998]
                                                             Genus Limnodriloides Pierantoni, 1903
                                                             [Genus Littodrilus Chen, 1940]
                                                             [Genus Lophochaeta Stolč, 1886]
                                                             [Genus Lycodrilides Hrabě, 1982]
                                                             Genus Lycodrilus Grube, 1873
                                                             [Genus Macquaridriloides Erseus & Jamieson, 1981]
                                                             Genus Macquaridrilus Jamieson, 1968
                                                             [Genus Macroseta Erséus, 1975]
                                                             Genus Marcusaedrilus Righi & Kanner, 1979
                                                             [Genus Marionidrilus Erséus, 1992]
                                                             Genus Mesenchytroeus
                                                             [Genus Mexidrilus Erséus, 1992]
                                                             [Genus Milliganius Erséus, 1992]
                                                             Genus Mitinokuidrilus Y. Takashima & S.F. Mawatari, 1998
                                                             Genus Monopylephorus Levinsen, 1884
                                                             [Genus Moraviodrilus Hrabě, 1935]
                                                             [Genus Neoaulodrilus Giani, Martinez-Ansemil, Moubayed & Dia, 1982]
                                                             [Genus Nootkadrilus Baker, 1982]
                                                             Genus Olavius Erseus, 1985
                                                             Genus Paranadrilus Gavrilov, 1955
                                                             Genus Pararhyacodrilus
                                                             Genus Peloscolex Leidy, 1851
                                                             Genus Peosidrilus Baker & Erseus, 1979
                                                             [Genus Pomatothrix] see Genus Potamothrix Vejdovský & Mrázek, 1902
                                                             [Genus "Quistradrilus"] see Genus Quistadrilus Brinkhurst, 1981
                                                             Genus Siolidrilus Marcus, 1949
                                                             Genus Smithsonidrilus Brinkhurst, 1966
                                                             Genus Spiridion Knöllner, 1935
                                                             Genus Svetlovia
                                                             Genus Tectidrilus Erseus, 1982
                                                             Genus Trasserkidrilus
                                                             Genus Tubificoides Lastockin, 1937
                                                             Genus Uniporodrilus Erseus, 1979
                                                             4.0 [Genus Rhyacodrilis] see Genus Rhyacodrilus Bretscher, 1901
                                                             5 [Subfamily Aulodrilinae] see Subfamily Tubificinae Vejdovský, 1876
                                                             7 [Subfamily Branchiurinae] see Subfamily Rhyacodrilinae Hrabě, 1963