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 Spirotrichea Bütschli, 1889
             ?Order Clevelandellida de Puytorac & Grain, 1976
               Family Sicuophoridae Amaro, 1972
                 1 Genus Prosicuophora de Puytorac & Oktem, 1967
                 2 Genus Metasicuophora Albaret, 1973
                 3 Genus Parasicuophora Albaret, 1968
                 4 Genus Sicuophora de Puytorac & Grain, 1969[1968]