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Appendix A

Xanthidium simplex

"Xanthidium simplex" White, 1842, p.38, pl.4, fig.10.

TYPE: Holotype: White, 1842, pl.4, fig.10.

HISTORY: NOW: Dapsilidinium. Originally Xanthidium tubiferum var. simplex (Appendix A), subsequently Xanthidium simplex, thirdly Hystrichosphaeridium simplex, fourthly Polysphaeridium? simplex, fifthly (and now) Dapsilidinium simplex.

AGE: Late Cretaceous.


Infraspecific taxa:


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