A palynological investigation of the shallow marine Diest Formation (Upper Miocene) in northern Belgium has revealed the presence of five previously undescribed dinoflagellate cyst species and one acritarch. A formal description and a preliminary assessment of the stratigraphical ranges of following species is given: Bitectatodinium?? arborichiarum Louwye, sp. nov., Operculodinium antwerpensis Louwye, sp. nov., Batiacasphaera deheinzelinii Louwye, sp. nov., Cerebrocysta lagae Louwye, sp. nov., Barssidinium taxandrianum Louwye, sp. nov. and Palaeostomocystis globosa Louwye, sp. nov. |