Gonyaulacysta muderongensis (Cookson and Eisenack, 1958) Sarjeant, 1966

Combination not validly published since Sarjeant, 1966, did not fully reference the basionym.

Now Cribroperidinium. Originally Gonyaulax, subsequently Gonyaulacysta (combination not validly published), thirdly (and now) Cribroperidinium.
Tax. sr. synonym of Gonyaulax (as Cribroperidinium) diaphanis Cookson and Eisenack, 1958, according to Backhouse, 1988.

Holotype: Cookson and Eisenack, 1958, pl.3, fig.3, text-fig.15
Age: Aptian