REINECKE, T. & VON DER HOCHT, F. & DUFRAING, L. (2015)
Fossil basking shark of the genus Keasius (Lamniforme, Cetorhindiae) from the boreal North Sea Basin and Upper Rhine Graben: evolution of dental characteristics from the Oligocene to late Middle Miocene and description of two new species. Palaeontos, 28: 60 text–pages (incl. 24 text–figs and 2 tables).