Wilsonidium triangulatum

"triangulatum" (Yu Jingxian, 1989, p.155–156, pl.58, figs.2,5,8) He Chengquan et al., 2009, p.505.  Holotype: Yu Jingxian, 1989, pl.58, fig.2.  NOW Epelidinium.  Originally Gochtodinium, subsequently Wetzeliella, thirdly Wilsonidium, fourthly (and now) Epelidinium.  Age: Eocene.

Parent: Wilsonidium