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Achomosphaera mariannae

Achomosphaera mariannae (Philippot, 1949, p.56-57; text-fig.2) Stover and Evitt, 1978, p.139.

TYPE: Holotype: Philippot, 1949, text-fig.2.

HISTORY: Originally Hystrichosphaeridium, subsequently Baltisphaeridium (Appendix A), thirdly (and now) Achomosphaera.

AGE: Late Cretaceous.


Infraspecific taxa:


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