Phylum Mollusca Linnaeus, 1758 - molluscs
   Conchifera Gegenbaur, 1878 see Subphylum Conchifera Gegenbauer, 1878
     Class Scaphopoda Bronn, 1862 - tusk shells
       Order Gadilida Starobogatov, 1974
         Suborder Gadilimorpha Steiner, 1992
           Family Pulsellidae Boss, 1982
             1 Genus Annulipulsellum Scarabino, 1986
             2 Genus Pulsellum Stoliczka, 1868
             3 Genus Striopulsellum Scarabino, 1995