Xanthidium tubiferum Appendix A

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"tubiferum" Ehrenberg, 1837b, pl.1, fig.16.  Emendation: Davey and Williams, 1966b, p.56–58, as Hystrichosphaeridium tubiferum.  Holotype: Ehrenberg, 1837b, pl.1, fig.16.  NOW Hystrichosphaeridium tubiferum.  Originally Xanthidium tubiferum, subsequently Hystrichosphaera tubifera (combination not validly published), thirdly (and now) Hystrichosphaeridium tubiferum, fourthly Ovum hispidum subsp. tubiferum (combination not validly published; Appendix A).  Taxonomic junior synonym: Xanthidium (as Hystrichokolpoma) bulbosum, according to Stover and Evitt (1978, p.55) — however, Lentin and Williams (1989, p.134) retained Xanthidium (as Hystrichokolpoma) bulbosum.  The validity/authorship of this name may need to be reconsidered as it appears that Ehrenberg (1837b) did not provide a description.  Age: Late Cretaceous?.

Parent: Xanthidium_Appendix A

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