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
         Suborder Stenoglossa Bouvier, 1887
           Superfamily Muricoidea Rafinesque, 1815
             Family Marginellidae Fleming, 1828 - marginellas
               Subfamily Marginellinae Fleming, 1828
                 Tribe Prunini Coovert & Coovert, 1995
                   Genus Rivomarginella Brandt, 1968