Chordata Bateson, 1885 - chordates
   Class Elasmobranchii Bonaparte, 1838 see Subclass Elasmobranchii Bonaparte, 1838
     Subclass Selachii see Subdivision Selachii
       Order Batoidei see Order Batoidea
         Suborder Sarcura
           72 Family Pristidae Bonaparte, 1835 - sawfishes
           73 Family Rhinidae Müller & Henle, 1841 see Subfamily Rhininae
           74 Family Rhinobatidae Müller & Henle, 1838 - guitarfishes
           75 Family †Asterodermidae
           76 Family Platyrhinidae Jordan, 1923
           77 Family Rajidae Blainville, 1816 - skates
           78 Family †Arthropteridae nom. illeg. [monotypic]