Physalocysta quadrata
From dinoflaj2
"quadrata" Xu Jinli et al., 1997, p.122-123, pl.23, figs.3-4,7-8. Holotype: Xu Jinli et al., 1997, pl.23, fig.3. Name not validly published: no English or Latin description. Age: Mid-Late Eocene.
Parent: Physalocysta