Hystrichosphaera tubifera

"tubifera" (Ehrenberg, 1838, pl.1, fig.16) Wetzel, 1933b, p.40.  Emendation: Davey and Williams, 1966b, p.56-58, as Hystrichosphaeridium tubiferum.  Holotype: Ehrenberg, 1838, pl.1, fig.16.  Combination not validly published: generic name not validly published until 1937.  NOW Hystrichosphaeridium tubiferum.  Originally Xanthidium tubiferum (Appendix A), subsequently Hystrichosphaera tubifera (combination not validly published), thirdly (and now) Hystrichosphaeridium tubiferum, fourthly Ovum hispidum 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.  Age: ?Late Cretaceous.

Parent: Hystrichosphaera