Trithyrodinium pentagonum

"pentagonum" May, 1980, p.87-88, pl.10, figs.13-14.  Holotype: May, 1980, pl.10, figs.13-14.  NOW Pierceites.  Originally Trithyrodinium, subsequently (and now) Pierceites.  Age: Early Maastrichtian.

Parent: Trithyrodinium