Achomosphaera mariannae
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mariannae (Philippot, 1949, p.56-57; text-fig.2) Stover and Evitt, 1978, p.139. Holotype: Philippot, 1949, text-fig.2. Originally Hystrichosphaeridium, subsequently Baltisphaeridium (Appendix A), thirdly (and now) Achomosphaera. Age: Late Cretaceous.
Parent: Achomosphaera
Infrataxon List: