Kingdom Animalia Linnaeus, 1758 - animals
   Phylum Mollusca Linnaeus, 1758 - molluscs
     Class Gastropoda Cuvier, 1795 - snails and slugs
       Subclass Prosobranchia Milne-Edwards, 1848 - prosobranchs see Class Gastropoda Cuvier, 1795
         Order Neogastropoda Wenz, 1938 see Suborder Neogastropoda Wenz, 1938
           Family Muricidae Rafinesque, 1815 - drills
             Genus Phyllonotus Swainson, 1833 see Subgenus Phyllonotus Swainson, 1833