Dapsilidinium pachydermum
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"pachydermum" (Cookson and Eisenack, 1960b, p.251-252, pl.38, fig.5; text-fig.5) Lentin and Williams, 1993, p.158. Holotype: Cookson and Eisenack, 1960b, pl.38, fig.5; Fauconnier and Masure, 2004, pl.48, fig.10. NOW Impletosphaeridium. Originally Hystrichosphaeridium, subsequently Polysphaeridium, thirdly Hystrichosphaeridium?, fourthly Dapsilidinium, fifthly (and now) Impletosphaeridium. Age: Oxfordian-Tithonian.
Parent: Dapsilidinium