life see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Empire Eukaryota (Chatton, 1925) see Domain Eukaryota Chatton, 1925
     Kingdom Animalia Linnaeus, 1758 - animals
       Subkingdom Bilateria Hatschek, 1888 [paraphyletic?] - bilaterians
         Branch Protostomia Grobben, 1908 [paraphyletic?] - protostomes see Infrakingdom Protostomia Grobben, 1908
           Infrakingdom Platyzoa T. Cavalier-Smith, 1998 see [unranked] Platyzoa Ax, 1987
             Phylum Platyhelminthes Gegenbaur, 1859 - flatworms
               Subphylum Neodermata (Ehlers, 1985) Cavalier-Smith, 1998 see Subclass Neodermata
                 1 Infraphylum Trematoda Rudolphi, 1808 see Infraclass Trematoda Rudolphi, 1808
                 2 Infraphylum Cercomeromorpha (Bychowsky, 1937) Cavalier-Smith, 1998