Geiselodinium apicidentatum
From dinoflaj2
apicidentatum (Jiabo, 1978, p.81, pl.2, fig.11) Song Zhichen and He Chengquan, 1982, p.735. Holotype: Jiabo, 1978, pl.2, fig.11. Originally Deflandrea?, subsequently (and now) Geiselodinium. Age: Early Tertiary.
Parent: Geiselodinium