Charlesdowniea marginata
From dinoflaj2
marginata Andreeva-Grigorovich and Savitskaya, 1993, p.43-44, pl.2, figs.1-3. Holotype: Andreeva-Grigorovich and Savitskaya, 1993, pl.3, fig.2. Age: Late Eocene-Oligocene.
Parent: Charlesdowniea