Phylum [Mollusca] Linnaeus, 1758 - molluscs Class Scaphopoda Bronn, 1862 - tusk shells Family Dentaliidae Children, 1834 Subfamily Dentaliinae (Gray, 1834) see Family Dentaliidae Children, 1834 Genus Fissidentalium Fischer, 1885 Subgenus Fissidentalium (Fissidentalium) Fischer, 1885