Class Dinophyceae Pascher (1914)
Status: extant
   Order Gymnodiniales Apstein (1909)
  Status: extant
     Family Gymnodiniaceae Lank. (1885)
    Status: extant
       Genus Amphidinium Clap. & J. Lachm. (1859)
      Status: extant
         Amphidinium stigmatum Schiller
        Status: extant