Kingdom Chromalveolata Adl et al., 2005 see Kingdom Chromista Caval.-Sm. (1981)
   Infrakingdom Alveolata Cavalier-Smith, 1991 see [unranked] Alveolata Cavalier-Smith, 1991
     Phylum Myzozoa Cavalier-Smith & Chao, 2004 see Subphylum Myzozoa Cavalier-Smith & Chao, 2004
       Superclass Syndina Cavalier-Smith, 1993 [monotypic] see Superclass Dinoflagellata Bütschli, 1885
         Class Syndinea Chatton, 1920 [monotypic]
           1 Order Syndiniales A.R. Loebl. (1976)