Gonyaulacysta microceras
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"microceras" (Eisenack, 1958a, p.391, pl.21, fig.13) Clarke and Verdier, 1967, p.31. Emendation: Sarjeant, 1985a, p.67, as Rhynchodiniopsis microceras. Holotype: Eisenack, 1958a, pl.21, fig.13; Sarjeant, 1985a, pl.6, figs.5–6; pl.7, fig.6; text-fig.4; Jan du Chêne et al., 1986a, pl.99, figs.5–6. NOW Rhynchodiniopsis?. Originally Gonyaulax (Appendix B), subsequently Gonyaulacysta, thirdly Rhynchodiniopsis, fourthly (and now) Rhynchodiniopsis?. This combination was not validly published in Sarjeant (1966b, p.131), since that author did not fully reference the basionym. Age: late Aptian.
Parent: Gonyaulacysta