"[Pisces]"
   Class Elasmobranchii Bonaparte, 1838 see Subclass Elasmobranchii Bonaparte, 1838
     Order Squaliformes Compagno, 1973 - dogfish sharks
       Family Dalatiidae Gray, 1851 - kitefin sharks
         Subfamily Somniosinae Jordan, 1888 - sleeper sharks see Family Somniosidae Jordan, 1888