Phylum Heterokonta Caval.-Sm. (1986) see Superphylum Heterokonta Caval.-Sm. (1986)
   Subphylum Ochrista Caval.-Sm. (1986), orth. inval. see Phylum Ochrista Caval.-Sm. (1995)
     Infraphylum Chrysista Caval.-Sm. (1993)
       Superclass Phagochrysia Cavalier-Sm. (1995)
         1 Class Chrysophycea Hibberd (1976) see Class Chrysophyceae Fritsch (1927)
         2 Class Flavoretea Cavalier-Sm. (1993)