Dinoflagellate biostratigraphy and sequence stratigraphy of the Type Maastrichtian (Upper Cretaceous), ENCI Quarry, The Netherlands

The upper Maastrichtian strata in ENCI Quarry contain rich assemblages of marine palynomorphs, especially dinoflagellate cysts. A quantitative study shows that a marked change from dinoflagellate-dominated assemblages to assemblages dominated by the acritarch genus Paralecaniella occurs at the base of the Lanaye Member, indicating a change from open marine to marginal marine conditions. A sequence stratigraphic breakdown into systems tracts...