living organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Eukaryotae see Domain Eukaryota Chatton, 1925
     Animalia Linnaeus, 1758 - animals
       Eumetazoa Butschli, 1910 see [unranked] Eumetazoa Bütschli, 1910
         Platyhelminthes Gegenbaur, 1859 - flatworms
           Trematoda Rudolphi, 1808 - flukes see Infraclass Trematoda Rudolphi, 1808
             Monogenea Carus, 1863 see Infraclass Monogenea
               Polyopisthocotylea Odhner, 1912 see Subclass Polyopisthocotylea
                 Microcotyloidea
                   Heteraxinidae Unnithan, 1957
                     Lintaxine Sproston, 1946
                       Lintaxine cokeri (Linton, 1940) Sproston, 1946