Xanthidium tubiferum var. spiculatum Appendix A

"var. spiculatum" White, 1844, p.87, pl.9, fig.4.  Holotype: White, 1844, pl.9, fig.4.  NOW Baltisphaeridium spiculatum (Appendix A).  Originally Xanthidium tubiferum var. spiculatum, subsequently Hystrichosphaeridium spiculatum, thirdly (and now) Baltisphaeridium spiculatum (Appendix A).  Age: Late Cretaceous.

Parent: Xanthidium tubiferum_Appendix A