Xanthidium claviferum Appendix A
From dinoflaj2
"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
