Acanthaulax septata
From dinoflaj3
"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