Class Dinophyceae Pascher (1914)
   Order Brachydiniales Sournia (1984) see Order Brachidiniales A.R. Loebl. ex Sournia (1984)
     Family Brachydiniaceae Sournia (1972) see Family Brachidiniaceae Sournia (1972)
       Genus Asterodinium Sournia (1972)
         Asterodinium gracile Sournia