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 Naviculales Bessey (1907) 1 Suborder Neidiineae D.G.Mann (1990) 2 Suborder Sellaphorineae D.G.Mann (1990) 3 Suborder Phaeodactylineae J.C. Lewin (1958) 4 Suborder Diploneidineae D.G.Mann (1990) 5 Suborder Naviculineae (Bessey) Hendey (1937)