Chordata Bateson, 1885 - chordates
   Class Elasmobranchii Bonaparte, 1838 see Subclass Elasmobranchii Bonaparte, 1838
     Subclass Selachii see Subdivision Selachii
       Order Batoidei see Order Batoidea
         Suborder Masticura (Gill, 1872)
           80 Family Dasyatidae Jordan, 1888 - stingrays
           81 Family Potamotrygonidae Garman, 1877 - river stingrays
           82 Family Brachiopteridae
           83 Family †Ptychodontidae Jaekel, 1898
           84 Family Myliobatidae Bonaparte, 1835
           85 Family Rhinopteridae Jordan & Evermann, 1896 see Subfamily Rhinopterinae (Jordan & Evermann, 1896)
           86 Family Mobulidae Gill, 1893 see Subfamily Mobulinae (Gill, 1893)