Phylum Dinoflagellata Engl. (1903) see Superclass Dinoflagellata Bütschli, 1885
   Subphylum Dinokaryota Fensome, F.J.R. Taylor, G. Norris, Sarjeant, Wharton & G.L. Williams (1993)
     Class Dinophyceae Pascher (1914)
       Subclass Peridiniphycidae Fensome, F.J.R. Taylor, G. Norris, Sarjeant, Wharton & G.L. Williams (1993)
         Order Peridiniales Haeckel (1894)
           Suborder Peridiniineae Poche (1913) see Order Peridiniales Haeckel (1894)
             Family Congruentidiaceae J. Schiller (1935), nom. rej. see Family Protoperidiniaceae Balech (1988), nom. cons.
               Subfamily Congruentidioideae J. Schiller (1935) see Subfamily Protoperidinioideae
                 01 Genus Congruentidium T.H. Abé (1927) see Genus Protoperidinium Bergh (1881)
                 02 Genus †Brigantedinium Reid (1977)
                 03 Genus †Capillicysta Matsuoka & Bujak (1987)
                 04 Genus †Cristadinium Head, Norris & Mudie (1989)
                 05 Genus †Deflagymnium Olaru (1978)
                 06 Genus †Gerlachidium Benedek & Sarjeant (1981)
                 07 Genus †Leipokatium Bradford (1975)
                 08 Genus †Lejeunecysta Artzner & Dörhöfer (1978)
                 09 Genus †Multispinula Bradford (1975)
                 10 Genus †Omanodinium Bradford (1975)
                 11 Genus †Phelodinium Stover & Evitt (1978)
                 12 Genus Protoperidinium Bergh (1881)
                 13 Genus †Pseudoalterbia Mao & Norris (1988)
                 14 Genus †Quinquecuspis Harland (1977)
                 15 Genus †Selenopemphix Benedek (1972)
                 16 Genus †Stelladinium Bradford (1975)
                 17 Genus †Trinovantedinium Reid (1977)
                 18 Genus †Votadinium Reid (1977)
                 19 Genus †Xandarodinium Reid (1977)