living organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Superkingdom Eukaryotae see Domain Eukaryota Chatton, 1925
     Kingdom Animalia Linnaeus, 1758 - animals
       Subkingdom Eumetazoa Butschli, 1910 see [unranked] Eumetazoa Bütschli, 1910
         Phylum Mollusca Linnaeus, 1758 - molluscs
           Class Bivalvia Linnaeus, 1758 - bivalves
             Subclass Heterodonta Neumayr, 1884 see Clade Heterodonta Neumayr, 1884
               Order Veneroida H. & A. Adams, 1856 see Order Venerida Gray, 1854
                 Superfamily Lucinacea Fleming, 1828, nom. illeg. see Superfamily Lucinoidea Fleming, 1828
                   1 Family Lucinidae Fleming, 1828 - lucines
                   2 Family Fimbriidae Nicol, 1950 (1870) see Subfamily Fimbriinae Nicol, 1950 (1870)
                   3 Family Mactromyidae Cox, 1929 (1887)
                   4 Family Thyasiridae Dall, 1900 (1895)
                   5 Family Ungulinidae Gray, 1854
                   6 Family Cyrenoididae Adams & Adams, 1857 (1853)