[Neoselachii] Compagno, 1977 - modern sharks and rays see Infraclass Elasmobranchii Bonaparte, 1838
   Order Carcharhiniformes Compagno, 1973 - ground sharks
     Family Triakidae Gray, 1851 - houndsharks
       Genus Gogolia Compagno, 1973 [monotypic]
         1 Gogolia filewoodi L.J.V. Compagno, 1973 - sailback houndshark