Timing of the onset of Devonian sedimentation in northwestern Poalnd: palynological evidence

Abstract

Początek dewońskiej sedymentacji w północno-zachodniej Polsce: przesłanki palinologiczne Palynomorph assemblages of low taxonomic diversity are recorded from the basal Devonian strata in three boreholes in western Pomerania and Kujawy. The palynoflora is assigned to a younger, autochtonous assemblage, and an older, redeposited one. The composition of the younger assemblage suggests lower to middle Eifelian. The older palynomorphs are derived from (1) Upper Ordovician or Lower Silurian, and (2) probably from Upper Silurian deposits.