Palaeoperidinium spinosum
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"spinosum" Cookson and Hughes, 1964, p.49, pl.8, figs.6-8. Holotype: Cookson and Hughes, 1964, pl.8, fig.8. Name not validly published: generic name not validly published until 1967. NOW Epelidosphaeridia. Originally Palaeoperidinium (name not validly published), subsequently (and now) Epelidosphaeridia. Age: Early Cenomanian.
Parent: Palaeoperidinium