Leptodinium aceras

"aceras" (Eisenack, 1958a, p.391, pl.21, figs.1-2) Sarjeant, 1969, p.12.  Emendation: Sarjeant, 1985a, p.57,59, as Cribroperidinium aceras.  Holotype: Eisenack, 1958a, pl.21, fig.1; Sarjeant, 1985a, pl.4, figs.1-2; Jan du Chêne et al., 1986a, pl.2, figs.6-7.  NOW Cribroperidinium.  Originally Gonyaulax (Appendix B), subsequently Gonyaulacysta? (combination not validly published), thirdly Leptodinium, fourthly Acanthaulax?, fifthly (and now) Cribroperidinium.  Age: Aptian.

Parent: Leptodinium