Prominangularia laevigata
From dinoflaj2
"laevigata" Jiabo, 1978, p.48, pl.19, figs.5-6. Holotype: Jiabo, 1978, pl.19, fig.6. Taxonomic senior synonym: Bohaidina laevigata, according to Sun Xuekun (1994, p.71). Age: Early Tertiary.
Parent: Prominangularia