Class Dinophyceae Pascher (1914)
   Order Peridiniales Haeckel (1894)
     Family Amphidomataceae Sournia (1984)
       Genus Amphidoma F. Stein (1883)
         1 Amphidoma caudata Halldal (1953)
         2 Amphidoma elongata Kofoid & Swezy
         3 Amphidoma nucula Stein