From Fensome et al., 2019:
Palaeocystodinium? deflandrei Gruas-Cavagnetto, 1968, p.92–93, pl.13, figs.15–19. Holotype: Gruas-Cavagnetto, 1968, pl.13, figs.15,18. Questionable assignment: Gruas-Cavagnetto (1968, p.92). Age: Late Paleocene.

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