Class Dinophyceae Pascher (1914) Order Pyrocystales Apstein (1909) see Order Gonyaulacales F.J.R. Taylor (1980) Family Pyrocystaceae (F. Schütt) Lemmerm. (1899) Genus Pyrocystis J. Murray ex Haeckel (1890) Pyrocystis obtusa Pavillard