The Lower Cretaceous Tuxen (lower Hauterivian – upper Barremian) and Sola (upper Barremian Albian) Formations in the Danish Central Graben (North Sea) constitute one of oldest chalk successions recorded globally, but have received little attention with regards to sedimentary facies depositional processes. This study presents first comprehensive carbonate analysis succession, retrieved from seve...

Monosulcate pollen grains are an important component of the Mesozoic palynofloras around world. These type produced by several groups plants and because morphological similarities among them, their taxonomic determination is difficult. Currently, there scarce information about differences monosulcate this makes botanical affinity in fossil specimens challenging. In work, we analyzed statistical...

On the Barents Shelf, northernmost and least explored hydrocarbon province of Norwegian Continental Upper Jurassic organic-rich shales have traditionally been given most attention as these represent prolific source rock unit region. However, in western frontier areas is too deeply buried. By combining high-resolution 2D seismic data, well logs, digitalized Rock-Eval this study documents lateral...

BACKGROUND Ichthyosauria is a diverse clade of marine amniotes that spanned most of the Mesozoic. Until recently, most authors interpreted the fossil record as showing that three major extinction events affected this group during its history: one during the latest Triassic, one at the Jurassic-Cretaceous boundary (JCB), and one (resulting in total extinction) at the Cenomanian-Turonian boundary...