Gonyaulacysta? cornigera (Valensi, 1953, p.27, pl.1, figs.4,8,10; pl.2, figs.1–2; pl.13, fig.5; text-fig.2a) Sarjeant, 1966b, p.131. Emendation: Jan du Chêne et al., 1985b, p.110, as Ctenidodinium cornigerum.

Combination not validly published since Sarjeant, 1966, did not fully reference the basionym.
Now Ctenidodinium. Originally Gonyaulax, subsequently Gonyaulacysta (combination not validly published), thirdly Hystrichogonyaulax, fourthly (and now) Ctenidodinium. Sarjeant, 1966, questionably included the species in Gonyaulacysta.
Possible tax. sr. synonym of Ctenidodinium combazii Dupin, 1968, according to Woollam, 1983.

Holotype: Valensi, 1953, pl.1, fig.8
Age: Bathonian