Bitectatodinium G.J. Wilson, 1973 (extant flag source)
Cosmiodiscus Greville, 1866 † (extant flag source)
Huttoniella G. Karsten in Engler & Prantl, 1928 accepted as Neohuttonia O. Kuntze, 1898 (extant flag source)
Hystrichosphaera O. Wetzel, 1933 accepted as Spiniferites G.A. Mantell, 1850 (extant flag source)
Impagidinium L.E. Stover & W.R. Evitt, 1978 (extant flag source)
Lejeunecysta D.G. Artzner & G. Dörhöfer, 1978 (extant flag source)
Lejeunia Gerlach, 1961 accepted as Lejeunecysta D.G. Artzner & G. Dörhöfer, 1978 (extant flag source)
Multispinula M.R. Bradford, 1975 accepted as Selenopemphix P.N. von Benedek, 1972 (extant flag source)
Nematosphaeropsis Deflandre & Cookson, 1955 (extant flag source)
Oolithotus Reinhardt, 1968 (extant flag source)
Operculodinium D. Wall, 1967 (extant flag source)
Polysphaeridium R.J. Davey & G.L. Williams, 1966 (extant flag source)
Quinquecuspis R. Harland, 1977 (extant flag source)
Spiniferites G.A. Mantell, 1850 (extant flag source)
Trinovantedinium P.C. Reid, 1977 (extant flag source)
Votadinium P.C. Reid, 1977 (extant flag source)
Xandarodinium P.C. Reid, 1977 (extant flag source)