Division Dinoflagellata Engl. (1903)
see Superclass Dinoflagellata Bütschli, 1885
Subdivision Dinokaryota Fensome, F.J.R. Taylor, G. Norris, Sarjeant, Wharton & G.L. Williams (1993)
see Superclass Dinokaryota Fensome et al., 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
Genus Congruentidium T.H. Abé (1927)
see Genus Protoperidinium Bergh (1881)