Class Dinophyceae Pascher (1914) Order Pyrocystales Apstein (1909) see Order Gonyaulacales F.J.R. Taylor (1980) Family Pyrocystaceae (F. Schütt) Lemmerm. (1899) 1 Genus Dissodinium G.A. Klebs (1916) 2 Genus Pyrocystis J. Murray ex Haeckel (1890)