Ceratium operculatum Appendix B

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"operculatum" Wetzel, 1933a, p.170, pl.2, figs.21-22; text-fig.3.  Holotype: Wetzel, 1933a, pl.2, fig.21.  NOW Odontochitina operculata.  Originally Ceratium (Euceratium) operculatum, subsequently Palaeoceratium (combination not validly published), thirdly (and now) Odontochitina.  Taxonomic junior synonym: Odontochitina silicorum, according to Deflandre and Cookson (1955, p.292).  Wetzel (1933a, p.170) gave the following citation, "Ceratium (Euceratium) operculatum n. sp." Age: Senonian.

Parent: Ceratium_Appendix B