Kingdom Protoctista Hogg, 1860
   Phylum Bacillariophyta Engl. & Gilg (1919) - diatoms see [unranked] Diatomea Kütz. (1844)
     Class Bacillariophyceae Haeckel (1878) - pennates
       Subclass Bacillariophycidae D.G.Mann (1990) - raphid diatoms
         Order Surirellales D.G.Mann (1990)
           Family Surirellaceae Kütz. (1844)
             1 Genus Surirella Turpin (1828)
             2 Genus Campylodiscus Ehrenb. (1840)
             3 Genus Cymatopleura W.Sm. (1851)
             4 Genus Stenoterobia see Genus Stenopterobia Bréb. ex Van Heurck (1896)
             5 Genus Peterodictyon see Genus Petrodictyon D.G.Mann (1990)
             6 Genus Hydrosilicon Brun (1891)
             7 Genus Plagiodiscus Grunow & Eulenst. (1867)