[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Phylum Mollusca Linnaeus, 1758 - molluscs
     Class Scaphopoda Bronn, 1862 - tusk shells
       Family Gadilidae Stoliczka, 1868
         1 Genus Cadulus Philippi, 1844
         2 Genus Gadila Gray, 1847
         3 Genus Dischides Jeffreys, 1867
         4 Genus Siphonodentalium Sars, 1859