Kingdom Animalia Linnaeus, 1758 - animals
   Phylum Craniata Linnaeus, 1758 see Subphylum Vertebrata Cuvier, 1812
     Pisces
       Class Elasmobranchii Bonaparte, 1838 see Subclass Elasmobranchii Bonaparte, 1838
         Order Squatiniformes Buen, 1926 - angel sharks
           1 Family Squatinidae Bonaparte, 1838 - angel sharks