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