Charlesdowniea marginata
From dinoflaj3
"marginata" Andreeva-Grigorovich and Savitskaya, 1993, p.43–44, pl.2, figs.1–3. Holotype: Andreeva-Grigorovich and Savitskaya, 1993, pl.2, fig.2; Andreeva-Grigorovich et al., 2011, pl.18, fig.4. NOW Talladinium. Originally Charlesdowniea, subsequently (and now) Talladinium. Age: Rupelian–Chattian.
Parent: Charlesdowniea