Class Scaphopoda Bronn, 1862 - tusk shells Order Gadilida Starobogatov, 1974 Suborder Gadilimorpha Steiner, 1992 Family Gadilidae Stoliczka, 1868 1 Subfamily Siphonodentaliinae Tryon, 1884 2 Subfamily Gadilinae Stoliczka, 1868 3 Genus †Gadilopsis Woodring, 1925