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Impletosphaeridium lumectum

Impletosphaeridium lumectum (Sarjeant, 1960a, p.139-140, pl.6, fig.1; text-fig.2) Islam, 1993, p.86.

HISTORY: Originally Baltisphaeridium (Appendix A), subsequently Cleistosphaeridium, thirdly Cleistosphaeridium?, fourthly (and now) Impletosphaeridium.

AGE: Late Oxfordian.


Infraspecific taxa:


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