Species description and diagnosis
Division Dinoflagellata (Butschli 1885) Fensome et al. (1993)
Class Dinophyceae Pascher (1914)
Order Peridiniales Haeckel (1894)
Family Protoperidiniaceae Balech (1988) nom. cons.
Genus Protoperidinium Bergh (1881)
Subgenus Protoperidinium (Gran 1902) Balech (1974)
Section Oceanica Jörgensen (1912)