living organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
Count: 4k;54p;156c;911o;7123f;17,575g;4762s;36ss;8v;19; ‡1f;6g;7s;1ss; †1c;10o;10f;19g;1s
   Superkingdom Eukaryotae see Domain Eukaryota Chatton, 1925
  Count: [c] 2k;51p;154c;900o;7001f;17,209g;4300s;33ss;8v; ‡1f;6g;7s;1ss; †1c;10o;10f;19g;1s
     Kingdom Animalia Linnaeus, 1758 - animals
    Count: [c] 38p;101c;595o;5766f;13,419g;3233s;32ss;3v; ‡1f;6g;7s;1ss; †1c;9o;10f;16g;1s
       Subkingdom Eumetazoa Butschli, 1910 see [unranked] Eumetazoa Bütschli, 1910
      Count: [c] 29p;70c;458o;5094f;11,476g;2933s;31ss;3v; ‡1f;6g;7s;1ss; †1c;8o;10f;11g;1s
         Phylum Platyhelminthes Gegenbaur, 1859 - flatworms
        Count: [f] 3c;31o;380f;645g;183s
           Class Trematoda Rudolphi, 1808 - flukes see Infraclass Trematoda Rudolphi, 1808
          Count: 5o;205f;304g;80s
             Subclass Digenea Carus, 1863
            Count: [f] 5o;149f;224g;52s
               Order Plagiorchiida La Rue, 1957
              Count: [f] 53f;93g;10s
                 Suborder Plagiorchiata
                Count: [f] 31f;55g;3s
                   Superfamily Plagiorchioidea (Luhe) Dollfus
                  Count: [f] 13f;24g;1s
                     01 Family Plagiorchiidae Lühe, 1901
                    Count: -
                     02 Family Haematoloechidae Freitas & Lent, 1939
                    Count: [g] 4g
                     03 Family Macroderoididae McMullen, 1937
                    Count: -
                     04 Family Brachycoeliidae Johnston, 1912
                    Count: [g] 3g
                     05 Family Mesocoeliidae Faust, 1924
                    Count: [g] 1g
                     06 Family Cephalogonimidae Looss, 1899
                    Count: [g] 5g
                     07 Family Auridistomatidae
                    Count: [g] 2g
                     08 Family Rhytidodidae Odhner, 1926
                    Count: [g] 2g
                     09 Family Calycodidae Dollfus, 1929
                    Count: [*] 1g;1s
                     10 Family Pachypsolidae Yamaguti, 1958
                    Count: [g] 1g
                     11 ?Family Omphalometridae
                    Count: -
                     12 ?Family Encyclometridae Mehra, 1931
                    Count: [g] 1g
                     13 ?Family Cephaloporidae
                    Count: [g] 4g