Kisselevia rhomboidalis
From dinoflaj2
"rhomboidalis" He Chengquan, 1991, p.93, pl.35, figs.11-13. Holotype: He Chengquan, 1991, pl.35, figs.11-12. NOW Charlesdowniea. Originally Kisselevia, subsequently (and now) Charlesdowniea. Age: Mid Eocene.
Parent: Kisselevia