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 Mastogloiales D.G.Mann (1990) Family Mastogloiaceae Mereschk. (1903) Genus Aneumastus D.G.Mann & Stickle (1990) Aneumastus tusculoides (Cleve-Euler) D.G.Mann (1990)