Phylum Dinoflagellata Engl. (1903) see Superclass Dinoflagellata Bütschli, 1885 Subphylum Dinokaryota Fensome, F.J.R. Taylor, G. Norris, Sarjeant, Wharton & G.L. Williams (1993) Class Dinophyceae Pascher (1914) Subclass Dinophysiphycidae Möhn ex Fensome, F.J.R. Taylor, G. Norris, Sarjeant, Wharton & G.L. Williams (1993) Order Dinophysiales Kof. (1926) see Order Dinophysales Er. Lindem. (1928) Family Oxyphysiaceae Sournia (1984) [monotypic] see Family Oxyphysaceae Sournia (1984) 1 Genus Oxyphysis Kof. (1926) see Genus Phalacroma F. Stein (1883)