Revision of the late Carboniferous megaflora from the De Lutte-06well (Twente, the Netherlands), and its stratigraphical implications

摘要

Biostratigraphical re-analysis of palaeobotanical data from the De Lutte-06 well clarifies an earlier controversy regarding the stratigraphicalinterpretation of this well based on palaeobotanical and palynological analysis. Previous biostratigraphical studies suggested an early WestphalianD age for the major part of the De Lutte formation, with only at the topmost part of the well remnants of presumable but unconfirmed Stephaniandeposits. New identifications of palaeobotanical samples illustrate the presence of plant macrofossil assemblages in the De Lutte Formationcharacteristic for the latest Westphalian D to the Stephanian B-C. These new palaeobotanical insights, therefore, confirm a younger age for theDe Lutte Formation and are more in line with the earlier palynological observations from the De Lutte-06 well that suggested that the recoveredpalynofloras resembled typical Stephanian associations.