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Hystrichosphaeridium simplex
Hystrichosphaeridium simplex (White, 1842) Deflandre, 1946
Now Dapsilidinium simplex. Originally Xanthidium tubiferum var. simplex, subsequently Xanthidium simplex, thirdly Hystrichosphaeridium simplex, fourthly Polysphaeridium? simplex, fifthly (and now) Dapsilidinium simplex.
Holotype: White, 1842, pl.4, fig.10
Age: Late Cretaceous
Now Dapsilidinium simplex. Originally Xanthidium tubiferum var. simplex, subsequently Xanthidium simplex, thirdly Hystrichosphaeridium simplex, fourthly Polysphaeridium? simplex, fifthly (and now) Dapsilidinium simplex.
Holotype: White, 1842, pl.4, fig.10
Age: Late Cretaceous