Division [Bacillariophyta] Engl. & Gilg (1919) see Phylum Bacillariophyta Engl. & Gilg (1919) [Subdivision] Bacillariophytina Medlin & Kaczmarska (2004) see Subphylum Bacillariophytina Medlin & Kaczmarska (2004) Class Bacillariophyceae Haeckel (1878) - pennates Subclass Urneidophycidae Medlin (2016) - basal araphid diatoms Genus Neofragillaria Medlin (2016) see Genus Neofragilaria T.V. Desikachary, A.K.S.K. Prasad & P. Prema (1987)