Ovoidinium verrucosum var. ostium

"var. ostium" (Davey, 1970, p.353, pl.4, figs.5–6; text-fig.1B) Davey and Verdier, 1973, p.198.  Holotype: Davey, 1970, pl.4, fig.5.  NOW Ovoidinium verrucosum subsp. ostium.  Originally Ovoidinium ostium, subsequently Ovoidinium verrucosum var. ostium, thirdly (and now) Ovoidinium verrucosum subsp. ostium, fourthly Ascodinium verrucosum subsp. ostium.  Age: Albian–early Cenomanian.

Parent: Ovoidinium verrucosum