Conicoidium granorugosum
From dinoflaj2
"granorugosum" Jiabo, 1978, p.46, pl.18, figs.11-12. Holotype: Jiabo, 1978, pl.18, fig.12. Taxonomic senior synonym: Parabohaidina retirugosa, according to Sun Xuekun (1994, p.82). Age: Early Tertiary.
Parent: Conicoidium