Impletosphaeridium pachydermum

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pachydermum (Cookson and Eisenack, 1960b, p.251–252, pl.38, fig.5; text-fig.5) Masure in Fauconnier and Masure, 2004, p.343.  Holotype: Cookson and Eisenack, 1960b, pl.38, fig.5; Fauconnier and Masure, 2004, pl.48, fig.10.  Originally Hystrichosphaeridium, subsequently Polysphaeridium, thirdly Hystrichosphaeridium?, fourthly Dapsilidinium, fifthly (and now) Impletosphaeridium.  Age: Oxfordian–Tithonian.

Parent: Impletosphaeridium