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 Protozoa Goldfuss, 1818 see Kingdom Protozoa Goldfuss, 1818
         Phylum Ciliophora Doflein, 1901 - ciliates
           Class Kinetofragminophora see Class Kinetofragminophorea
             Subclass Suctoria Claparède & Lachmann, 1858 - suctorians
               Order Suctorida see Subclass Suctoria Claparède & Lachmann, 1858
                 Suborder Evaginogenina Jankowski, in Corliss, 1979 see Order Evaginogenida Jankowski, 1978
                   Family Heliophryidae Corliss, 1979 see Family Trichophryidae Fraipont, 1878
                     1 Genus Cyclophrya Gönnert, 1935
                     2 Genus Heliophrya de Saedeleer & Tellier, 1933
                     3 Genus Platophrya Gönnert, 1935