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, 1–60
Kovalchuk, O. & Barkaszi, Z. (2021)
Oligocene basking sharks (Lamniformes, Cetorhinidae) of the Carpathian Basin with a reconsideration of the role of gill rakers in species diagnostics. Journal of Vertebrate Paleontology, 41(2), Article e1929269
DOI: 10.1080/02724634.2021.1929269