Hystrichosphaeridium ellipticum
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"ellipticum" Cookson, 1965a, p.87-88, pl.11, figs.1-3,3a. Holotype: Cookson, 1965a, pl.11, figs.1-3,3a. NOW Distatodinium. Originally Hystrichosphaeridium, subsequently Tanyosphaeridium, thirdly (and now) Distatodinium. Age: Late Eocene.
Parent: Hystrichosphaeridium