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 Colpodea Small & Lynn, 1981
             Order Cyrtolophosidida Foissner, 1978
               Family Woodruffiidae von Gelei, 1954
                 1 Genus Woodruffia Kahl, 1931
                 2 Genus Rostrophrya Njiné, 1979
                 3 Genus Kuklikophrya Njiné, 1979