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