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 Oligohymenophorea de Puytorac et al., 1974 - oligohymenophoreans
             Subclass Astomatia Schewiakoff, 1896
               Order Astomatidaᵀ Schewiakoff, 1896
                 Family Radiophryidae de Puytorac, 1972
                   1 Genus Acanthodiophrya de Puytorac & Dragesco, 1968
                   2 Genus Mrazekiella Kijenskii, 1926
                   3 Genus Helella Kaczanowski, 1961, nom. illeg. see Genus Helellophrya Aescht, 2001
                   4 Genus Anthonyella Delphy, 1936
                   5 Genus Radiophrya Rossolimo, 1926
                   6 Genus Metaracoelophrya de Puytorac & Dragesco, 1969
                   7 Genus Metaradiophrya Heidenreich, 1935, nom. nud.