Impletosphaeridium lumectum
From dinoflaj2
lumectum (Sarjeant, 1960a, p.139-140, pl.6, fig.1; text-fig.2) Islam, 1993, p.86. Originally Baltisphaeridium (Appendix A), subsequently Cleistosphaeridium, thirdly Cleistosphaeridium?, fourthly (and now) Impletosphaeridium. Age: Late Oxfordian.
Parent: Impletosphaeridium
