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 Bacillariales Hendey (1937)
         Family Bacillariaceae Ehrenb. (1831)
           Genus Psammodictyon D.G.Mann (1990)
             01 Psammodictyon panduriformeᵀ (Gregory) D.G.Mann (1990)
             02 Psammodictyon areolatum (Hust.) D.G.Mann (1990)
             03 Psammodictyon bisculptum (A. Mann) D.G.Mann (1990)
             04 Psammodictyon bombiforme (Grunow) D.G.Mann (1990)
             05 Psammodictyon constrictum (Gregory) D.G.Mann (1990)
             06 Psammodictyon corpulentum (Hendey) D.G.Mann (1990)
             07 Psammodictyon ferox (Hust.) D.G.Mann (1990)
             08 Psammodictyon inductum (Hust.) D.G.Mann (1990)
             09 Psammodictyon mediterraneum (Hust.) D.G.Mann (1990)
             10 Psammodictyon molle (Hust.) D.G.Mann (1990)
             11 Psammodictyon roridum (Giffen) D.G.Mann (1990)
             12 Psammodictyon rudum (Cholnoky) D.G.Mann (1990)