Impletosphaeridium mediterraneum

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"mediterraneum" (Corradini, 1973, p.137-138, plo.19, figs.5a-b; text-fig.4) Islam, 1993, p.86.  Holotype: Corradini, 1973, text-fig.4.  NOW Pervosphaeridium.  Originally Cleistosphaeridium, subsequently Impletosphaeridium, thirdly (and now) Pervosphaeridium.  Age: Senonian.

Parent: Impletosphaeridium