Alopiidae Carcharhinidae Chlamydoselachidae Dasyatidae Echinorhinidae Ginglymostomatidae Gymnuridae Heterodontidae Hexanchidae Lamnidae Mobulidae Myliobatidae Narcinidae Odontaspididae Pristidae Rajidae Rhinobatidae Scyliorhinidae  Sphyrnidae Squalidae Squatinidae Triakidae Urotrygonidae