Division Bacillariophyta Engl. & Gilg (1919) see Phylum Bacillariophyta Engl. & Gilg (1919)
   Class Bacillariophyceae Haeckel (1878) - pennates
     Subclass Bacillariophycidae D.G.Mann (1990) - raphid diatoms
       Order Surirellales D.G.Mann (1990)
         1 Family Entomoneidaceae Reimer (1975)
         2 Family Auriculaceae Hendey (1964)
         3 Family Surirellaceae Kütz. (1844)