Palaeoceratium operculatum
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"operculatum" (Wetzel, 1933a, p.170, pl.2, figs.21–22; text-fig.3) Wetzel, 1948, p.329. Holotype: Wetzel, 1933a, pl.2, fig.21. Combination not validly published: the generic name Palaeoceratium is not validly published. NOW Odontochitina. Originally Ceratium subgenus Euceratium (Appendix B), subsequently Palaeoceratium subgenus Euceratium (combination not validly published), thirdly (and now) Odontochitina. Taxonomic junior synonym: Odontochitina silicorum, according to Deflandre and Cookson (1955, p.292). Age: Senonian.
Parent: Palaeoceratium