Class Dinophyceae Pascher (1914)
Count: [*] 11o;33f;117g;1550s;1ss
   Order Peridiniales Haeckel (1894)
  Count: [*] 15f;59g;728s;1ss
     Family Protoperidiniaceae Balech (1988), nom. cons.
    Count: [*] 10g;291s;1ss
       Genus Protoperidinium Bergh (1881)
      Count: [*] 263s;1ss
         Protoperidinium elegantissimum (Balech) Balech (1974)
        Count: -