Les dinokystes des craies du campanien au danien a halebaye turnhout (Belgique) et a beutenaken (Pays-Bas)

In 75 samples from the chalk of the Campanian up to the Danian, collected in the Turnhout borehole (Belgium) and in the carries of Halembaye (Belgium) and Beutenaken (the Netherlands)we have encountered about 600 dinoflagellate species among which 80 species were certainly reworked from the Jurassic and Lower Cretaceous.In this contribution on systematic we give the definitions and the descriptions of 6 new genera and 55 new species, we present emendations of 3 genera and 4 species and propose 5 new combinations. 7 species are retained in open nomenclature and about 30 are the object of remark... Mehr ...