Alterbidinium ovale
From dinoflaj2
ovale (He Chengquan, 1991, p.73, pl.29, figs.7-10) Lentin and Williams, 1993, p.22. Holotype: He Chengquan, 1991, pl.29, fig.7. Originally Alterbia (generic name illegitimate), subsequently (and now) Alterbidinium. Age: Turonian-Mid Eocene.
Parent: Alterbidinium