Phylum Dinoflagellata Engl. (1903) see Superclass Dinoflagellata Bütschli, 1885
Count: [*†*] 4c;13o;53f;257g; †1o;11f;512g [2 Mar 2016]
   Subphylum Dinokaryota Fensome, F.J.R. Taylor, G. Norris, Sarjeant, Wharton & G.L. Williams (1993)
  Count: [*†*] 3c;12o;49f;243g; †1o;10f;511g [2 Mar 2016]
     Class Blastodiniphyceae Fensome, F.J.R. Taylor, G. Norris, Sarjeant, Wharton & G.L. Williams (1993) [monotypic] see Class Haplozooidea Poche, 1911
    Count: [*] 1o;6f;16g [1 Mar 2016]
       Order Blastodiniales Chatton (1906) [monotypic]
      Count: [*] 6f;16g [1 Mar 2016]
         Genus Schizodinium Chatton (1912), incertae sedis see Genus Blastodinium Chatton (1906)
        Count: -