Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         Biota
           "neomura"
             Domain Eukaryota Chatton, 1925 - eukaryotes
               neokaryotes Cavalier-Smith 1993 - mitochondrial eukaryotes
                 neozoa Cavalier-Smith 1993
                   Superkingdom Corticata Lankester, 1878
                     Kingdom Chromista Caval.-Sm. (1981) - chromists
                       Subkingdom Hacrobia Okamoto, Chantangsi, Horák, Leander & Keeling (2009)
                         Phylum Cryptista Cavalier-Smith, 1986
                           Subphylum Rollomonadia Cavalier-Smith, 2013
                             Superclass Leucocrypta Cavalier-Smith, 2004 [monotypic]
                               Class Leucocrypteaᵀ Caval.-Sm. (2004) [monotypic]
                                 Order Kathablepharida Cavalier-Smith, 1993 [monotypic]
                                   Family Kathablepharidaeᵀ Vørs, 1992, orth. zool.
                                     1 Genus Kathablepharisᵀ Skuja, 1939
                                     2 Genus Leucocryptos Butcher, 1967
                                     3 Genus Platychilomonas Larsen & Patterson, 1990
                                     4 Genus Hatena Okamoto & Inouye, 2006 [monotypic]
                                     5 Genus Roombia Okamoto, Chantangsi, Horák, Leander & Keeling, 2009 [monotypic]