[Neoselachii] Compagno, 1977 - modern sharks and rays see Infraclass Elasmobranchii Bonaparte, 1838 Order Lamniformes Berg, 1958 - mackerel sharks Family Cetorhinidae Gill, 1861 [monotypic] - basking sharks 1 Genus Cetorhinus Blainville, 1816 [monotypic]