Scriniodinium obscurum

"?obscurum" Manum and Cookson, 1964, p.21–22, pl.4, figs.5–6.  Holotype: Manum and Cookson, 1964, pl.4, fig.6.  NOW Endoscrinium.  Originally Scriniodinium, subsequently Scriniodinium?, thirdly (and now) Endoscrinium.  Questionable assignment: Stover and Evitt (1978, p.188).  Age: Late Cretaceous.

Parent: Scriniodinium