Class Bivalvia Linnaeus, 1758 - bivalves
   Subclass Autobranchia Grobben, 1894
     Superorder Heteroconchia Gray, 1854
       Clade Heterodonta Neumayr, 1884
         Order †Actinodontida Dechaseaux, 1952 [monotypic]
           Superfamily †Cycloconchoidea Ulrich, 1894
             Family †Cycloconchidae Ulrich, 1894
               1 Subfamily †Cycloconchinae Ulrich, 1894
               2 Subfamily †Taselasmodinae Fang & Cope, 2008