Hystrichosphaeridium membranaceum

"membranaceum" Philippot, 1949, p.57–58; text-fig.3.  Holotype: Philippot, 1949, text-fig.3.  NOW Cymatiosphaera philippotii (Appendix A).  Originally Hystrichosphaeridium membranaceum, subsequently Cymatiosphaera membranacea (name illegitimate; Appendix A), thirdly (and now) Cymatiosphaera philippotii (Appendix A).  Age: Late Cretaceous.

Parent: Hystrichosphaeridium