Phylum Heterokonta Caval.-Sm. (1986) see Superphylum Heterokonta Caval.-Sm. (1986)
Status: extant
   Subphylum Ochrista Caval.-Sm. (1986), orth. inval. see Phylum Ochrista Caval.-Sm. (1995)
  Status: extant
     Infraphylum Raphidoista Caval.-Sm. (1986)
    Status: extant
       Superclass Dictyochia Haeckel (1894)
      Status: extant
         Class Actinochrysea Caval.-Sm. (1995) see Class Dictyochophyceae Silva (1980)
        Status: extant
           Subclass Pedinellidae Caval.-Sm. (1986) see Class Dictyochophyceae Silva (1980)
          Status: extant
             1 Order Pedinellales Zimmermann et al. (1984)
            Status: extant
             2 Order Ciliophryales Caval.-Sm. (1995) see Suborder Ciliophryineae Febvre-Chevalier ex Caval.-Sm. (2006)
            Status: extant