Gonyaulacysta cornuta (Cookson and Eisenack, 1962) Yun, 1981

Now Pterodinium?. Originally Pterodinium, subsequently (and now) Pterodinium?, thirdly Gonyaulacysta.
Holotype: Cookson and Eisenack, 1962, pl.3, figs.1-3; Jan du Chêne et al., 1986, pl.90, fig.1
Age: Albian-?Aptian