[Neoselachii] Compagno, 1977 - modern sharks and rays see Cohort Neoselachii Compagno, 1977 Order Squaliformes Compagno, 1973 - dogfish sharks Family Oxynotidae Gill, 1872 [monotypic] - rough sharks 1 Genus Oxynotus Rafinesque, 1810