Phylum Mollusca Linnaeus, 1758 - molluscs
   Conchifera Gegenbaur, 1878 see Subphylum Conchifera Gegenbauer, 1878
     Class Scaphopoda Bronn, 1862 - tusk shells
       Order Dentaliida Starobogatov, 1974
         Family Dentaliidae Children, 1834
           01 Genus Antalis Adams & Adams, 1854
           02 Genus Coccodentalium Sacco, 1896
           03 Genus Compressidentalium Habe, 1963
           04 Genus Dentalium Linnaeus, 1758
           05 Genus †Eodentalium Medina & del Valle, 1985
           06 Genus Eudentalium Cotton & Godfrey, 1933
           07 Genus Fissidentalium Fischer, 1885
           08 Genus Graptacme Pilsbry & Sharp, 1897
           09 Genus †Paleodentalium Gentile, 1974
           10 Genus Paradentalium Cotton & Godfrey, 1933
           11 Genus Pictodentalium Habe, 1963
           12 Genus Plagioglypta Pilsbry, 1898
           13 Genus Schizodentalium Sowerby, 1894
           14 Genus Striodentalium Habe, 1964
           15 Genus Tesseracme Pilsbry & Sharp, 1898