Hystrichosphaeridium spiculatum

"spiculatum" (White, 1844, p.87, pl.9, fig.4) Deflandre, 1937b, p.79.  Holotype: White, 1844, pl.9, fig.4.  NOW Baltisphaeridium spiculatum (Appendix A).  Originally Xanthidium tubiferum var. spiculatum (Appendix A), subsequently Hystrichosphaeridium spiculatum, thirdly (and now) Baltisphaeridium spiculatum (Appendix A).  Age: Late Cretaceous.

Parent: Hystrichosphaeridium