Author	Schioler, P., Brinkhuis, H., Roncaglia, L. and Wilson, G.J.
Year	1997
Journal	Marine Microplaeontology vol. 31, nos.1/2, pp. 65-95.Marine Microplaeontology vol. 31, nos.1/2, pp. 65-95
Title	Dinoflagellate biostratigraphy and sequence stratigraphy of the Type Maastrichtian (Upeer Cretaceous), ENCI Quarry, The Netherlands.

Abstract Schioler, P., Brinkhuis, H., Roncaglia, L. and Wilson, G.J. Dinoflagellate biostratigraphy and sequence stratigraphy of the Type Maastrichtian (Upeer Cretaceous), ENCI Quarry, The Netherlands. Marine Microplaeontology vol. 31, nos.1/2, pp. 65-95. 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 based on an interpretation of the changes in the palynological assemblages and lithology suggests the presence of parts of four sedimentary cycles in the ENCI section. Three of the cycles may be correlated with the third-order cycles UZA 4.5, TA 1.1 and TA 1.2 of Haq et al. (1988), the fourth cycle is probably of higher order. Three dinoflagellate cysts are new: Laciniadinium? aquiloniforme Schi01er et al., sp. nov., Leberidocysta? verrucosa Schi01er et al., sp. nov. and Pulchrasphaera minuscula Schi01er et al., gen. et sp. nov. The description of Rottnestia wetzelii is emended and the new combination Cribroperidinium wilsonii (Slimani) Schioler et al., comb. nov. is proposed. The Triblastula utinensis Zone, Isabelidinium cooksoniae Zone and the Palynodinium grallator Zone with its two subzones, Tanyosphaeridium magdalium Subzone and Thalassiphora pelagica Subzone can be recognized in the ENCI section.