Wilsonidium glabrum

"glabrum" (Cookson, 1956, p.186, pl.2, figs.1–5) Costa and Downie, 1979, p.45.  Holotype: Cookson, 1956, pl.2, fig.1.  NOW Rhadinodinium.  Originally Wetzeliella, subsequently Rhombodinium, thirdly Wilsonidium, fourthly Rhombodinium?, fifthly (and now) Rhadinodinium.  Age: Eocene.

Parent: Wilsonidium