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Hystrichosphaeridium tubiferum

*Hystrichosphaeridium tubiferum (Ehrenberg, 1838, pl.1, fig.16) Deflandre, 1937b, p.68.

EMENDATION: Davey and Williams, 1966b, p.56-58, as Hystrichosphaeridium tubiferum.

TYPE: Holotype: Ehrenberg, 1838, pl.1, fig.16.

HISTORY: Originally Xanthidium tubiferum (Appendix A), subsequently Hystrichosphaera tubifera (combination not validly published), thirdly (and now) Hystrichosphaeridium tubiferum, fourthly Ovum hispidum subsp. tubiferum (combination not validly published; Appendix A).

SYNONYM(S): 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?


Infraspecific taxa:


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