title: Ryazanian (Berriasian) molluscs and biostratigraphy of the Dutch and Norwegian North Sea area (south of Viking Graben)
abstract: Abstract Herein, Ryazanian (Berriasian) macrofossils from three well cores in the Central Graben (wells B18-02, L06-02, The Netherlands) and on the Jæren High (well 7/7-2, Norway) in the southern North Sea region are described. Macrofossils are mainly represented by buchiid bivalves ( Buchia volgensis ) and ammonites ( Surites , Lynnia and Praetollia ?). The genus Lynnia is recorded for the first time outside its topotypical area, and its systematic position and stratigraphic ranges are discusse
journal: Netherlands Journal of Geosciences – Geologie en Mijnbouw