Gonyaulax pachyderma Appendix B
From dinoflaj3
"pachyderma" Deflandre, 1939a, p.176–178, pl.7, figs.6–10; text-figs.7–10. Holotype: Deflandre, 1939a, pl.7, figs.6–7. NOW Korystrocysta. Originally Gonyaulax, subsequently Gonyaulacysta, thirdly Ctenidodinium, fourthly Ctenidodinium?, fifthly (and now) Korystocysta, sixthly Dichadogonyaulax. Taxonomic junior synonyms: Leptodinium norrisii, according to Benson (1985, p.154); Dichadogonyaulax (subsequently Korystocysta) kettonensis, by implication in Conway (1990, p.35), who considered Dichadogonyaulax kettonensis to be the senior name — however, Lentin and Williams (1993, p.374) retained Dichadogonyaulax (as Korystocysta) kettonensis. Age: Oxfordian.
Parent: Gonyaulax_Appendix B