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 Chrysista Caval.-Sm. (1993)
    Count: [c] 5c
       Superclass Fucistia Caval.-Sm. (1995)
      Count: [c] 3c
         Class Xanthophycea Fritsch (1935) see Class Xanthophyceae P. Allorge ex Fritsch (1935)
        Count: -
           Subclass Rhizochloridae Cavalier-Sm. (1993)
          Count: -