Bipolaribucina liaoningensis
From dinoflaj2
"liaoningensis" Jiabo, 1978, p.58, pl.29, figs.6-8. Holotype: Jiabo, 1978, pl.29, fig.7. NOW Peltiphoridium. Originally Bipolaribucina, subsequently Impletosphaeridium, thirdly (and now) Peltiphoridium. Age: Early Tertiary.
Parent: Bipolaribucina