Phthanoperidinium bennettii
From dinoflaj3
bennettii Matsuoka and Bujak, 1988, p.66–67, pl.9, figs.4–9; text-figs.13A–B. Holotype: Matsuoka and Bujak, 1988, pl.9, fig.4; text-fig.13A. Age: early Oligocene.
Parent: Phthanoperidinium