Division Dinoflagellata Engl. (1903) see Superclass Dinoflagellata Bütschli, 1885
Count: [*†*] 4c;13o;45f;285g; †1o;11f;583g
   Subdivision Syndinia [monotypic]
  Count: [*] 1c;1o;4f;15g
     Class Syndiniophyceae A.R. Loebl. (1976) [monotypic] see Class Syndinea Chatton, 1920
    Count: [*] 1o;4f;15g
       Order Syndiniales A.R. Loebl. (1976)
      Count: [*] 4f;15g
         Family Duboscquellaceae Chatton ex A.R. Loebl. (1970)
        Count: [*] 4g
           Genus Duboscquodinium Grassé (1952)
          Count: -