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 acuta Kofoid (1907)