living organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Superkingdom Eukaryotae see Domain Eukaryota Chatton, 1925
     Kingdom Animalia Linnaeus, 1758 - animals
       Subkingdom Eumetazoa Butschli, 1910 see [unranked] Eumetazoa Bütschli, 1910
         Phylum Platyhelminthes Gegenbaur, 1859 - flatworms
           Class Turbellaria Ehrenberg, 1831 - planarians see Subphylum Turbellaria Ehrenberg, 1831
             Order Acoela Uljanin, 1870 - acoels see Class Acoela Uljanin, 1870
               01 Genus Convoluta Oersted, 1843
               02 Genus Haplogonaria Dorjes, 1968
               03 Genus Oligochoerus Beklemischev, 1963
               04 Family Anaperidae Dörjes, 1968
               05 Family Anthroposthiidae see Family Antroposthiidae Faubel, 1976
               06 Family Antigonariidae Dörjes, 1968
               07 Family Childiidae Dörjes, 1968
               08 Family Convolutidae Graff, 1905
               09 Family Diopisthoporidae Westblad, 1940
               10 Family Hallangiidae Westblad, 1946
               11 Family Haploposthiidae Westblad, 1948
               12 Family Hofsteniidae Bock, 1923
               13 Family Mecynostomidae Dörjes, 1968
               14 Family Nadinidae Dörjes, 1968
               15 Family Otocelidae see Family Otocelididae Westblad, 1948
               16 Family Paratomellidae Dörjes, 1966
               17 Family Proporidae Graff, 1882
               18 Family Solenofilomorphidae Dörjes, 1968