Prominangularia micirugosa
From dinoflaj3
"micirugosa" He Chengquan, 1984b, p.158, pl.2, figs.12–17. Holotype: He Chengquan, 1984b, pl.2, fig.14. NOW Bohaidina. Originally Prominangularia, subsequently (and now) Bohaidina. Taxonomic senior synonym: Bohaidina rugosa, according to Sun Xuekun (1994, p.71) — however, He Chengquan et al. (2009, p.454) retained this species separately. Age: Tertiary.
Parent: Prominangularia