Bigyra Cavalier-Smith, 1998
   Subphylum Opalozoa Cavalier-Smith, 1992
     Infraphylum Bikosia Cavalier-Smith, 2013 [monotypic]
       Class Bikosea Cavalier-Smith, 2013
         Subclass Bicosidia Cavalier-Smith, 2006
           Superorder Borokiae Cavalier-Smith, 2006 [monotypic]
             Order Borokida Cavalier-Smith, 2006 [monotypic]
               Family Borokidae Cavalier-Smith, 2006 [monotypic]
                 1 Genus Boroka