Class Scaphopoda Bronn, 1862 - tusk shells
   Order Gadilida Starobogatov, 1974
     Suborder Gadilimorpha Steiner, 1992
       Family Gadilidae Stoliczka, 1868
         Subfamily Gadilinae Stoliczka, 1868
           1 Genus Bathycadulus Scarabino, 1995
           2 Genus Cadulus Philippi, 1844
           3 Genus Gadila Gray, 1847
           4 Genus †Sulcogadila Moroni & Ruggieri, 1981