Xanthidium claviferum Appendix A

"claviferum" Wilkinson, 1849, p.89–92, pl.13, fig.1.  Holotype: Wilkinson, 1849, pl.13, fig.1.  NOW Baltisphaeridium (Appendix A).  Originally Xanthidium, subsequently Hystrichosphaeridium, thirdly (and now) Baltisphaeridium (Appendix A).  Age: Late Cretaceous.

Parent: Xanthidium_Appendix A