Class Bivalvia Linnaeus, 1758 - bivalves
   Subclass Autobranchia Grobben, 1894
     Superorder †Nepiomorphia Kříž, 2007
       Order †Antipleurida Kříž, 2007 [monotypic]
         Superfamily †Dualinoidea Conrath, 1887
           1 Family †Dualinidae Conrath, 1887
           2 Family †Spanilidae Kříž, 2007
           3 Family †Stolidotidae Starobogatov, 1977