Phylum Mollusca Linnaeus, 1758 - molluscs
   Class Bivalvia Linnaeus, 1758 - bivalves
     Subclass Heterodonta Neumayr, 1884 see Clade Heterodonta Neumayr, 1884
       Order Chamida see Order Venerida Gray, 1854
         Superfamily Cardioidea Lamarck, 1809
           Family Lymnocardiidae Stoliczka, 1870 see Subfamily Lymnocardiinae Stoliczka, 1870
             1 Genus Adacna Eichwald, 1838
             2 Genus Dacicardium Papaianopol, 1975
             3 Genus Didacna Eichwald, 1838
             4 Genus Monodacna Eichwald, 1838
             5 Genus Myocardia Vest, 1861
             6 Genus Prodidacna Vaught, 1989, orth. inval. see Genus Protodidacna Logvinenko & Starobogatov, 1966