Kingdom Protoctista Hogg, 1860
Count: [p] 36p;91c;87o;183f;507g;35s;2v
   Phylum Bacillariophyta Engl. & Gilg (1919) - diatoms see [unranked] Diatomea Kütz. (1844)
  Count: [f] 4c;41o;83f;204g
     Class Coscinopiscophyceae see Class Coscinodiscophyceae Round & R.M. Crawford (1990)
    Count: -
       5 Subclass Corethronophycidae see Subclass Corethrophycidae Round & R.M. Crawford (1990)
      Count: -