Subclass Elasmobranchii Bonaparte, 1838 - shark-like fishes Cohort Euselachii Hay, 1902 - spined sharks and relatives see Infraclass Euselachii Hay, 1902 Subcohort Neoselachii Compagno, 1977 - modern sharks and rays see Cohort Neoselachii Compagno, 1977 Order Rhinobatiformes Müller & Henle, 1837 - guitarfishes see Order Rajiformes Berg, 1940 Family Rhinidae Müller & Henle, 1841 see Subfamily Rhininae