Phthanoperidinium obscurum

obscurum Harland and Sharp, 1980, p.291,293-295, pl.1, figs.1-9, pl.2, figs.1-6; text-figs.3A-C.  Holotype: Harland and Sharp, 1980, pl.1, figs.1-2.  Age: Late Eocene.

Parent: Phthanoperidinium