Gonyaulax crispa W. Wetzel, 1967; Emendations: Sarjeant, 1980b, p.119-120, as Hystrichogonyaulax crispa; Fenton, 1981, p.255,257, as Cribroperidinium crispum.

NOW Cribroperidinium. Originally Gonyaulax, subsequently Gonyaulacysta, thirdly Millioudodinium, fourthly Hystrichogonyaulax, fifthly (and now) Cribroperidinium, sixthly Acanthaulax.

Holotype: Wetzel, 1967a, pl.15, figs.4a-b; Dietz et al., 1999, text-fig.5a
Age: Middle Jurassic