organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Domain eukaryotes see Domain Eukaryota Chatton, 1925
     alveolates Cavalier-Smith see [unranked] Alveolata Cavalier-Smith, 1991
       Phylum Ciliophora Doflein, 1901 - ciliates
         Subphylum Intramacronucleata Lynn, 1996 - amphiesmates
           Class Phyllopharyngea de Puytorac et al., 1974
             Subclass Suctoria Claparède & Lachmann, 1858 - suctorians
               Order Endogenida Collin, 1912
                 Family Trichophryidae Fraipont, 1878
                   1 Genus Trichophrya Claparède & Lachmann, 1859
                   2 Genus Platophrya Gönnert, 1935
                   3 Genus Heliophrya de Saedeleer & Tellier, 1933