Phthanoperidinium antarcticum

antarcticum Mao Shaozhi and Mohr, 1995, p.249,251, pl.1, figs.1–7,9–10; pl.7, figs.3,6–7.  Holotype: Mao Shaozhi and Mohr, 1995, pl.1, fig.1.  Age: middle Eocene.

Parent: Phthanoperidinium