Phylum Heterokonta Caval.-Sm. (1986) see Superphylum Heterokonta Caval.-Sm. (1986)
Count: -
   Subphylum Ochrista Caval.-Sm. (1986), orth. inval. see Phylum Ochrista Caval.-Sm. (1995)
  Count: -
     Infraphylum Raphidoista Caval.-Sm. (1986)
    Count: -
       Superclass Dictyochia Haeckel (1894)
      Count: [f] 2c;5o;7f;7g;3s
         1 Class Pelagophycea Andersen & Saunders, 1993, nom. emend. see Class Pelagophyceae R.A. Andersen & G.W.Saunders (1993)
        Count: [f] 1o;1f;1g;1s
         2 Class Actinochrysea Caval.-Sm. (1995) see Class Dictyochophyceae Silva (1980)
        Count: [f] 4o;6f;6g;2s