Class Dinophyceae Pascher (1914)
   Order Peridiniales Haeckel (1894)
     Family Oxytoxaceae Er. Lindem. (1928)
       72 Genus Amphidiniopsis Wolosz. (1929)
       73 Genus Centrodinium Kof. (1907)
       74 Genus Corythodinium Loebl. & A.R. Loebl. (1966)
       75 Genus Oxytoxum F. Stein (1883)
       76 Genus Planodinium R.D. Saunders & J.D. Dodge (1984)
       77 Genus Sabulodinium R.D. Saunders & J.D. Dodge (1984)
       78 Genus Schuettiella Balech (1988)
       79 Genus Thecadinium Kof. & Skogsb. (1928)