Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         [crown] Clade Biota J.R. Wagner, 2004 [J. Wiemann et al., 2020]
           Clade neomura T. Cavalier-Smith, 1987
             Domain Eukaryota Chatton, 1925 - eukaryotes
               Clade discaria T. Cavalier-Smith, 2022(2021)
                 Clade dorsates T. Cavalier-Smith, 2022(2021)
                   Clade podiates T. Cavalier-Smith, 2013(2012)
                     [crown] Clade Amorphea S.M. Adl et al., 2012 [A.G.B. Simpson et al., 2020]
                       [crown] Clade Obazoa M.W. Brown et al., 2013, nom. cl. nov.
                         [crown] Clade Opisthokonta T. Cavalier-Smith, 1987 [A.G.B. Simpson & M. Medina, 2020] - animal-fungal clade
                           Superkingdom Holozoa B.F. Lang et al., 2002
                             Clade filozoa K. Shalchian-Tabrizi et al., 2008, nom. cl. nov.
                               Kingdom Animalia C. Linnaeus, 1758 - animals
                                 Clade Planulozoa A. Wallberg et al., 2004, nom. cl. nov.
                                   Subkingdom Bilateria (Hatschek, 1888) Cavalier-Smith, 1983 - bilaterians
                                     Clade Nephrozoa U. Jondelius et al., 2002, nom. cl. nov.
                                       Infrakingdom Protostomia Grobben, 1908
                                         Superphylum Spiralia Schleip, 1929
                                           Clade Platytrochozoa T.H. Struck et al., 2014, nom. cl. nov.
                                             Clade Lophotrochozoa K.M. Halanych et al., 1995, nom. cl. nov., nom. cl. praeinit. - lophotrochozoans
                                               Clade Trochozoa Beklemischev, 1944 - trochozoans
                                                 Phylum Annelida Lamarck, 1809 - segmented worms
                                                   Class Clitellata Michaelsen, 1919
                                                     "oligochaetous Clitellata" [paraphyletic]
                                                       Subclass Tubificata B.G.M. Jamieson, 1988
                                                         Order Enchytraeida
                                                           Family Enchytraeidaeᵀ Vejdovský, 1879
                                                             Genus Marionina Michaelsen, in Pfeffer, 1890
                                                               ?Marionina forbesae F. Smith & Welch, 1913