Palynology and depositional history of the Paleocene? Thyra Ø Formation, Wandel Sea Basin, eastern North Greenland

Abstract

The Thyra Ø Formation in eastern North Greenland has been dated as Late Paleocene to possibly earliest Eocene based on its content of palynomorphs. The palynomorph assemblage is dominated by long ranging taxa and reworked Upper Cretaceous species. The Late Paleocene age of the formation is based on the occurrence of Cerodinium speciosum and Spinidinium pilatum. However, the presence of Cerodinium markovae, Spinidinium sagittula, and ?Ilexpollenites sp. suggests that the formation may range into the earliest Eocene.