organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020] Kingdom Protoctista Hogg, 1860 Phylum Bacillariophyta Engl. & Gilg (1919) - diatoms see [unranked] Diatomea Kütz. (1844) Genus Achnanthes Bory (1822) Genus Amphipleura Kütz. (1844) Genus Arachnoidiscus H. Deane pat. ex Shadbolt (1852) Genus Asterionella Hassall (1850) Genus Biddulphia Gray (1821) Genus Coscinodiscus Ehrenb. (1839) Genus Cyclotella (Kütz.) Bréb. (1838) Genus Cymbella C.Agardh (1830) Genus Diatoma Bory (1824) Genus Eunotia Ehrenb. (1837) Genus Fragilaria Lyngb. (1819) Genus Hantschia see Genus Hantzschia Grunow (1877) Genus Meridion C.Agardh (1824) Genus Navicula Bory (1822) Genus Nitschia see Genus Nitzschia Hassall (1845) Genus Pinnularia (Ehrenb.) Ehrenb. (1843) Genus Planktoniella Schütt (1893) Genus Rhopalodia O.Müll. (1895) Genus Surirella Turpin (1828) Genus Tabellaria Ehrenb. ex Kütz. (1844) 1 Class Centrales see Order Centrales 2 Class Pennales see Class Bacillariophyceae Haeckel (1878)