Abantosphaeridium Banerjee & Rawat, 1991 † (basis of record)
Abantosphaeridium Banerjee & Rawat, 1991 † (extant flag source)
Abantosphaeridium Banerjee & Rawat, 1991 † (habitat flag source)
Abantosphaeridium Banerjee & Rawat, 1991 † (status source)
Bacchidinium polyopes (Cookson & Eisenack) R.J. Davey † (extant flag source)
Bacchidinium sarmentum R.J. Davey, 1979 † (extant flag source)
Batioladinium pomum R.J. Davey, 1982 † (extant flag source)
Batioladinium radiculatum R.J. Davey, 1982 † (extant flag source)
Batioladinium simplex (H.-S. Yun) J. Jansonius † (extant flag source)
Batioladinium varigranosum (Duxbury) R.J. Davey † (extant flag source)
Bicarinellum tumulosum H. Willems, 1988 † (extant flag source)
Capillicysta fusca K. Matsuoka & J.P. Bujak in K. Matsuoka, J.P. Bujak & T. Shimazaki, 1987 † (extant flag source)
Cassiculosphaeridia magna R.J. Davey † (extant flag source)
Cassiculosphaeridia tocheri P. Schiøler, 1993 † (extant flag source)
Ellipsoidictyum groenlandicum M. Smelror, 1988 † (extant flag source)
Hystrichokolpoma cinctum Klumpp, 1953 † (extant flag source)
Hystrichokolpoma cinctum Klumpp, 1953 † (basis of record)
Hystrichokolpoma denticulatum K. Matsuoka, 1974 † (extant flag source)
Hystrichokolpoma ellipticum K. Matsuoka, 1974 † (extant flag source)
Hystrichosphaera dentata H. Gocht † (extant flag source)
Hystrichosphaera furcata (Ehrenberg) O. Wetzel, 1933 † (extant flag source)
Hystrichosphaera longispinosa (Eisenack, 1931) Wetzel, 1932 † (extant flag source)
Hystrichosphaera ramosa (Ehrenberg, 1838) Deflandre, 1937 † (basis of record)
Hystrichosphaera ramosa (Ehrenberg, 1838) Deflandre, 1937 † (extant flag source)
Hystrichosphaeropsis perforata P. Schiøler, 1993 † (extant flag source)
Imbatodinium fractum N.C. Mehrotra & W.A.S. Sargeant, 1984 † (extant flag source)
Imbatodinium pomum (R.J. Davey) N.C. Mehrotra & W.A.S. Sargeant † (extant flag source)
Imbatodinium radiculatum (R.J. Davey) N.C. Mehrotra & W.A.S. Sargeant † (extant flag source)
Membranilarnacia delicata R.K. Kar † (extant flag source)
Polysphaeridium cephalum R.K. Kar † (extant flag source)
Polysphaeridium elongatum K.P. Jain & P. Millepied † (extant flag source)
Polysphaeridium granulosum K.P. Jain & P. Millepied † (extant flag source)
Polysphaeridium microtriainum (B. Klumpp) R.K. Kar † (extant flag source)
Polysphaeridium multispinosum R.J. Davey † (extant flag source)
Polysphaeridium punctatum K.P. Jain & P. Millepied † (extant flag source)
Tectatodinium pellitum Wall, 1967 accepted as Gonyaulax spinifera (Claparède & Lachmann) Diesing, 1866 (extant flag source)
Tectatodinium simplex (R. Harland) L.E. Edwards † (extant flag source)
Tuberculodinium vancampoae (Rossignol) Wall, 1967 accepted as Pyrophacus vancampoae (R. Rossignol) Wall & Dale (extant flag source)