Class Dinophyceae Pascher (1914)
   Order Peridiniales Haeckel (1894)
     Family Heterocapsaceae Fensome, F.J.R. Taylor, G. Norris, Sarjeant, Wharton & G.L. Williams (1993)
       Genus Heterocapsa F. Stein (1883)
         957 Heterocapsa arctica Horiguchi & Kubo
         958 Heterocapsa circularisquama Horiguchi
         959 Heterocapsa illdefina (E.M. Herman & B.M. Sweeney, 1976)
         960 Heterocapsa horiguchii Iwataki, Takayama & Matsuoka (2002)
         961 Heterocapsa lanceolata Iwataki & Fukuyo
         962 Heterocapsa minima A.J. Pomroy, 1989
         963 Heterocapsa niei (Loeblich III) Morrill & Loeblich III
         964 Heterocapsa orientalis Iwataki & Fukuyo (2003)
         965 Heterocapsa ovata Iwataki & Fukuyo (2003)
         966 Heterocapsa pygmaea Loeblich III, Schmidt & Sherley
         967 Heterocapsa rotundata (Lohmann) G. Hansen (1995)
         968 Heterocapsa triquetra (Ehrenb.) Stein (1883)