Ovoidinium verrucosum subsp. ostium

From dinoflaj2
Jump to: navigation, search

subsp. ostium (Davey, 1970, p.353, pl.4, figs.5-6; text-fig.1B) Lentin and Williams, 1975, p.2153.  Holotype: Davey, 1970, pl.4, fig.5.  Originally Ovoidinium ostium, subsequently Ovoidinium verrucosum var. ostium, thirdly (and now) Ovoidinium verrucosum subsp. ostium, fourthly Ascodinium verrucosum subsp. ostiumLentin and Williams (1989, p.270) retained this taxon as Ovoidinium verrucosum subsp. ostium.  Age: Albian-Early Cenomanian. Parent: Ovoidinium verrucosum