Stomodinium crassum
From dinoflaj2
"*crassum" He Chengquan, 1984a, p.770-771, pl.1, figs.12-14; text-fig.2. Holotype: He Chengquan, 1984a, pl.1, fig.12. NOW Xenicodinium. Originally Stomodinium, subsequently (and now) Xenicodinium. Age: Early-Mid Eocene.
Parent: Stomodinium