Gonyaualcysta? aceras (Eisenack, 1958a, p.391, pl.21, figs.1–2) Sarjeant, 1966b, p.131. Emendation: Sarjeant, 1985a, p.57,59, as Cribroperidinium aceras.

Combination not validly published since Sarjeant, 1966, did not fully reference the basionym.
Now Cribroperidinium. Originally Gonyaulax, subsequently Gonyaulacysta (combination not validly published), thirdly Leptodinium, fourthly Acanthaulax?, fifthly (and now) Cribroperidinium.
Sarjeant, 1966, intended to questionably include this species in Gonyaulacysta.

Holotype: Eisenack, 1958, pl.21, fig.1; Sarjeant, 1985, pl.4, figs.1-2; Jan du Chêne et al., 1986, pl.2, figs.6-7
Paratype: Eisenack, 1958
Locus typicus: Marne, Feld Heide, N Germany
Stratum typicum: Aptian
Translation Eisenack, 1958: Sarjeant, 1985

Original diagnosis: Eisenack, 1958, p.391: Gonyaulax aceras
Shell oval, without horns. Epi- and hypotheca almost equal. Transverse furrow spiral, narrow, delimited by solid but low crests. Plate boundaries only partially marked by crests, these and the plate surfaces being set with short, pointed tubercles, so that the tabulation is scarcely discernible.