Ascodinium verrucosum subsp. ostium

"subsp. ostium" (Davey, 1970, p.353, pl.4, figs.5-6; text-fig.1B) Lentin and Williams, 1985, p.29.  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: Ascodinium verrucosum