Chordata Bateson, 1885 - chordates
   Class Elasmobranchii Bonaparte, 1838 see Infraclass Elasmobranchii Bonaparte, 1838
     Subclass Selachii see Division Selachii
       Order Batoidei see Order Batoidea
         Suborder Masticura (Gill, 1872)
           80 Family Dasyatidae Jordan & Gilbert, 1879 - whiptail stingrays
           81 Family Potamotrygonidae Garman, 1877 - neotropical stingrays
           82 Family Brachiopteridae
           83 Family †Ptychodontidae Jaekel, 1898
           84 Family Myliobatidae Bonaparte, 1835 - eagle rays
           85 Family Rhinopteridae Jordan & Evermann, 1896 - cownose rays
           86 Family Mobulidae Gill, 1893 - mantas