Nyktericysta trigona
From dinoflaj3
"trigona" Lang Yan et al., 1999, p.375,387–388, pl.3, figs.1–7. Holotype: Lang Yan et al., 1999, pl.3, fig.3. NOW Quantouendinium. Originally Nyktericysta, subsequently (and now) Quantouendinium. Age: Early Cretaceous.
Parent: Nyktericysta