Rhynchodiniopsis angulosa

"angulosa" (Gitmez, 1970, p.252, pl.2, figs.4-5; text-figs.7A-B) Courtinat, 1989, p.203.  Holotype: Gitmez, 1970, pl.2, figs.4-5; text-figs.7A-B; Jan du Chêne et al., 1986a, pl.2, figs.11-15.  NOW Cribroperidinium.  Originally Gonyaulacysta, subsequently Acanthaulax, thirdly Meristaulax Sarjeant, fourthly Acanthaulax?, fifthly Rhynchodiniopsis, sixthly (and now) Cribroperidinium.  Taxonomic senior synonym: Gonyaulax (as Gonyaulacysta, now Cribroperidinium) granulata, according to Fisher and Riley (1980, p.321) - however, Sarjeant and Gocht in Sarjeant (1984a, p.160) retained Gonyaulacysta (as Meristaulax; now Rhynchodiniopsis) angulosa.  Age: Early Kimmeridgian.

Parent: Rhynchodiniopsis