Shandongidium helmithoideum
From dinoflaj2
"helmithoideum" Xu Jinli et al., 1997, p.56-57, pl.5, figs.6-7. Holotype: Xu Jinli et al., 1997, pl.5, fig.6. Name not validly published: no English or Latin description. Age: Mid-Late Eocene.
Parent: Shandongidium
