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Appendix A

Xanthidium tubiferum var. spiculatum

"Xanthidium tubiferum var. spiculatum" White, 1844, p.87, pl.9, fig.4.

TYPE: Holotype: White, 1844, pl.9, fig.4.

HISTORY: NOW: Baltisphaeridium spiculatum (Appendix A). Originally Xanthidium tubiferum var. spiculatum, subsequently Hystrichosphaeridium spiculatum, thirdly (and now) Baltisphaeridium spiculatum (Appendix A).

AGE: Late Cretaceous.


Infraspecific taxa:


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