†Keasius septemtrionalis Reinecke, von der Hocht, & Dufraing, 2015[3]
†Keasius rhenanus Reinecke, von der Hocht, & Dufraing, 2015
Synonyms
Genus synonymy
"Praecetorhinus" von der Hocht, 1978 (nomen nudum)[4]
Species synonymy
K. parvus
Cetorhinus parvus Leriche, 1908
Keasius is an extinct genus of basking sharks that lived during the Cenozoic. It contains four valid species, which have been found in North America, Europe, and Antarctica.[1][3]
^ abWelton, B.J. (2013). "A new archaic basking shark (Lamniformes: Cetorhinidae) from the late Eocene of western Oregon, U.S.A., and description of the dentition, gill rakers and vertebrae of the recent basking shark Cetorhinus maximus (Gunnerus)". New Mexico Museum of Natural History and Science Bulletin. 58: 1–48.
^Leriche, M. (1908). "Sur un appareil fanonculaire de Cetorhinus trouvé à l'état fossile dans le Pliocène d'Anvers". Comptes rendus hebdomadaires des séances de l'Académie des sciences. 146 (16): 875–878.
^ abReinecke, T.; von der Hocht, F.; Dufraing, L. (2015). "Fossil basking shark of the genus Keasius (Lamniforme, Cetorhinidae) 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: 39–98.
^von der Hocht, F. (1978). "Bestandsaufnahme der Chondrichthyes-Fauna des unteren Meeressandes (Oligozän, Rupelium) in Mainzer Becken". Mededelingen van de Werkgroep voor Tertiaire en Kwartaire Geologie. 15 (3): 77–83.
Keasius is an extinct genus of basking sharks that lived during the Cenozoic. It contains four valid species, which have been found in North America,...
basking shark, Cetorhinus, as well as two extinct genera, Caucasochasma and Keasius. Gill, T.N. (1861). "Catalogue of the fishes of the eastern coast of North...
oldest known members of Cetorhinidae are members of the extinct genus Keasius, from the middle Eocene of Antarctica, the Eocene of Oregon and possibly...
range: Early Miocene PreꞒ Ꞓ O S D C P T J K Pg N ↓ Life restoration, with Keasius Scientific classification Domain: Eukaryota Kingdom: Animalia Phylum: Chordata...
Río Baguales Formation Chile A sand shark, a species of Jaekelotodus. Keasius Gen. et sp. et comb. nov Valid Welton Late Eocene to middle Miocene France...
von der Hocht; L. Dufraing (2015). "Fossil basking shark of the genus Keasius (Lamniformes, Cetorhinidae) from the boreal North Sea Basin and Upper Rhine...