Class Scaphopoda Bronn, 1862 - tusk shells Order Dentaliida Starobogatov, 1974 Family Gadilinidae Chistikov, 1975 1 Subfamily Gadilininae Chistikov, 1975 [monotypic] 2.1 Subfamily †Lobantalinae Chistikov, 1975 [monotypic] 2.2 Subfamily Episiphoninae Chistikov, 1975 [monotypic]