Domain Eucaryota
   Subdomain Chlorota Doweld (2001)
     Kingdom Bacillariobiota Doweld (2001)
       Subkingdom Bacillariobiotina Doweld (2001)
         1 Phylum Bacillariophyta Engl. & Gilg (1919) - diatoms see [unranked] Diatomea Kütz. (1844)
         2 Phylum Vaucheriophyta Maekawa (1953)
         3 Phylum Fucophyta Pax (1904) see Phylum Phaeophyta Kjellman (1891)
         4 Phylum Eustigmatophyta Hibberd & Leedale (1970) see Phylum Ochrophyta Caval.-Sm. (1995)
         5 Phylum Synurophyta Doweld (2001)
         6 Phylum Chrysomonadophyta Pascher (1931)
         7 Phylum Raphidomonadophyta Doweld (2001)
         8 Phylum Dictyochophyta Corliss ex Doweld (2001)
         9 Phylum Pedinellophyta Moehn ex Doweld (2001)