Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
           "neomura" Cavalier-Smith 1987
             Domain Eukaryota Chatton, 1925 - eukaryotes
               neokaryotes Cavalier-Smith 1993 - mitochondrial eukaryotes
                 neozoa Cavalier-Smith 1993
                   scotokaryotes Cavalier-Smith 2000
                     podiates Cavalier-Smith 2012 [nom. cl. nov.]
                       Amorphea Adl et al. 2012 [nom. cl. nov.]
                         Opisthokonta Cavalier-Smith 1987
                           Superkingdom Holozoa Lang, O'Kelly, Nerad, Gray & Burger, 2002
                             filozoa Shalchian-Tabrizi, Minge, Espelund, Orr, Ruden, Jakobsen & Cavalier-Smith 2008
                               Kingdom Animalia Linnaeus, 1758 - animals
                                 Planulozoa Wallberg, Thollesson, Farris & Jondelius 2004 [nom. cl. nov.]
                                   Subkingdom Bilateria Hatschek, 1888 - bilaterians
                                     Nephrozoa Jondelius, Ruiz-Trillo, Baguñà & Riutort 2002 [nom. cl. nov.]
                                       Infrakingdom Protostomia Grobben, 1908
                                         Superphylum Spiralia Schleip, 1929
                                           Platytrochozoa Struck, Wey-Fabrizius, Golombek, Hering, Weigert, Bleidorn, Klebow, Iakovenko, Hausdorf, Petersen, Kück, Herlyn & Hankeln 2014 [nom. cl. nov.]
                                             "Lophotrochozoa" Halanych, Bacheller, Aguinaldo, Liva, Hillis & Lake 1995 [nom. cl. nov.], nom. cl. inval. - lophotrochozoans
                                               Trochozoa Beklemischev, 1944 - trochozoans
                                                 Phylum Annelida Lamarck, 1809 - segmented worms
                                                   Class Polychaeta Grube, 1850 - polychaetes
                                                     Order Scolecida
                                                       1.1.1.1.1.1 Family Arenicolidae Johnston, 1835
                                                       1.1.1.1.1.2 Family Maldanidae Malmgren, 1867 - bamboo worms
                                                       1.1.1.1.2 Family Capitellidae Grube, 1862
                                                       1.1.1.2 Family Opheliidae Malmgren, 1867
                                                       1.1.2 Family Scalibregmatidae Malmgren, 1867
                                                       1.2.1.1 Family Orbiniidae Hartman, 1942
                                                       1.2.1.2.1 ?Ichnogenus †Helminthoidea Schafhäutl, 1851
                                                       1.2.1.2.2 Family Paraonidae Cerruti, 1909
                                                       1.2.2 Family Questidae O. Hartman, 1966 [monotypic]
                                                       2 Family Cossuridae Day, 1963