Rhynchodiniopsis perforans

"perforans" (Cookson and Eisenack, 1958, p.30–32, pl.2, figs.1–4,7–8; text-figs.8–9) Sarjeant, 1982b, p.35.  Holotype: Cookson and Eisenack, 1958, pl.2, fig.1; text-figs.8–9; Jan du Chêne et al., 1986a, pl.32, fig.2.  NOW Cribroperidinium?.  Originally Gonyaulax (Appendix B), subsequently Gonyaulacysta, thirdly Leptodinium?, fourthly Rhynchodiniopsis, fifthly Cribroperidinium, sixthly (and now) Cribroperidinium?.  Age: Late Jurassic.

Parent: Rhynchodiniopsis