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) Suborder Neidiineae D.G.Mann (1990) Family Cavinulaceae D.G.Mann (1990) Genus Cavinulaᵀ D.G.Mann & Stickle (1990) Cavinula cocconeiformisᵀ (Gregory ex Grev.) D.G.Mann & Stickle (1990)