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Polysphaeridium simplex

"Polysphaeridium? simplex" (White, 1842, p.38, pl.4, fig.3, fig.10) Davey and Williams, 1969, p.7.

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

HISTORY: NOW: Dapsilidinium simplex. Originally Xanthidium tubiferum var. simplex (Appendix A), subsequently Xanthidium simplex (Appendix A), thirdly Hystrichosphaeridium simplex, fourthly Polysphaeridium? simplex, fifthly (and now) Dapsilidinium simplex. Questionable assignment: Davey and Williams (1969, p.7).

COMMENTS: This combination, as a questionable assignment, was not validly published in Davey and Williams (1966b, p.95), since these authors did not fully reference the basionym.

AGE: Late Cretaceous.


Infraspecific taxa:


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