[Neoselachii] Compagno, 1977 - modern sharks and rays see Cohort Neoselachii Compagno, 1977
   1 Order Hexanchiformes Compagno, 1973 - six-gill sharks
   2 Order Squaliformes Compagno, 1973 - dogfish sharks
   3 Order Pristiophoriformes Compagno, 1973 [monotypic] - saw sharks
   4 Order Squatiniformes Buen, 1926 [monotypic] - angel sharks
   5 Order Heterodontiformes Compagno, 1973 [monotypic] - bullhead sharks
   6 Order Orectolobiformes Compagno, 1973 - carpet sharks
   7 Order Lamniformes Berg, 1958 - mackerel sharks
   8 Order Carcharhiniformes Compagno, 1973 - ground sharks