Class Scaphopoda Bronn, 1862 - tusk shells
   Order Gadilida Starobogatov, 1974
     Suborder Gadilimorpha Steiner, 1992
       1 Family Pulsellidae Boss, 1982
       2 Family Wemersoniellidae Scarabino, 1986
       3 Family Gadilidae Stoliczka, 1868
       4 Genus Compressidens Pilsbry & Sharp, 1897, incertae sedis
       5 Genus Megaentalina Habe, 1963, incertae sedis