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 Rhombodinium.  Originally Wetzeliella, subsequently (and now) Rhombodinium, thirdly Wilsonidium.  Age: Eocene.

Parent: Wilsonidium