Cleistosphaeridium mediterraneum

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

Parent: Cleistosphaeridium