Xanthidium malleoferum Appendix A
From dinoflaj2
"malleoferum" White, 1842, p.37, pl.4, div.3, fig.7. Holotype: White, 1842, pl.4, div.3, fig.7; Sarjeant, 1991, fig.4.6. NOW Achomosphaera?. Originally Xanthidium, subsequently Baltisphaeridium (Appendix A), thirdly (and now ) Achomosphaera?, fourthly Hystrichosphaeridium (combination not validly published). Age: Late Cretaceous.
Parent: Xanthidium