Class Dinophyceae Pascher (1914) Order Gymnodiniales Apstein (1909) Family Gymnodiniaceae Lank. (1885) Genus Takayama de Salas, Bolch, L. Botes & Hallegr. (2003) Takayama acrotrochum (J. Larsen) de Salas, Bolch & Hallegraeff (2003)