Acanthaulax venusta

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"*venusta" (Klement, 1960, p.44-45, pl.5, figs.10-13; text-fig.22) Sarjeant, 1968, p.227.  Holotype: Klement, 1960, pl.5, figs.10-11.  NOW Cribroperidinium.  Originally Gonyaulax (Appendix B), subsequently Acanthogonyaulax (combination not validly published), thirdly Acanthaulax, fourthly Gonyaulacysta, fifthly (and now) Cribroperidinium.  Age: Mid Oxfordian-Kimmeridgian.

Parent: Acanthaulax