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 Bacillariophyceae Haeckel (1878) - pennates
    Count: 11o;37f;84g
       1 Subclass Eunotiophycidae D.G.Mann (1990) see Subclass Bacillariophycidae D.G.Mann (1990)
      Count: [f] 1o;2f;5g
       2 Subclass Bacillariophycidae D.G.Mann (1990) - raphid diatoms
      Count: [f] 10o;35f;79g