Diconodinium firmum
From dinoflaj3
"firmum" Harland, 1973, p.669–670, pl.84, figs.8–9,15; text-fig.6. Holotype: Harland, 1973, pl.84, fig.8. NOW Laciniadinium. Originally Diconodinium, subsequently (and now) Laciniadinium. Age: late Campanian.
Parent: Diconodinium