Operculodinium severinii

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severinii (Cookson and Cranwell, 1967, p.208, pl.3, figs.1–2) Islam, 1983b, p.342.  Holotype: Cookson and Cranwell, 1967, pl.3, fig.1.  Originally Baltisphaeridium (Appendix A) subsequently Impletosphaeridium, thirdly (and now) Operculodinium.  Age: Eocene–Oligocene.

Parent: Operculodinium