[living organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Superkingdom Eukaryota Whittaker & Margulis, 1978 see Domain Eukaryota Chatton, 1925
     Kingdom Chromista Caval.-Sm. (1981) - chromists
       Subkingdom Harosa Cavalier-Smith, 2010
         Infrakingdom Halvaria Cavalier-Smith, 2010
           Superphylum Alveolata Cavalier-Smith, 1991
             Phylum Ciliophora Doflein, 1901 - ciliates
               Subphylum Intramacronucleata Lynn, 1996 - amphiesmates
                 Class Oligohymenophorea de Puytorac et al., 1974 - oligohymenophoreans
                   Subclass Peniculia Fauré-Fremiet, 1956
                     1 Order Peniculida Fauré-Fremiet, 1956
                     2 Order Urocentrida Jankowski, 1980