Acanthaulax septata
From dinoflaj2
"septata" Hultberg, 1985c, p.104-105, pl.1, fig.C. Holotype: Hultberg, 1985c, pl.1, fig.C. NOW Cribroperidinium. Originally Acanthaulax, subsequently (and now) Cribroperidinium. Age: Late Maastrichtian-Danian.
Parent: Acanthaulax