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 Veneracea Rafinesque, 1815 see Superfamily Veneroidea Rafinesque, 1815
                   1 Family Veneridae Rafinesque, 1815 - venus clams
                   2 Family Petricolidae d'Orbigny, 1840 - rock borers see Subfamily Petricolinae d'Orbigny, 1840
                   3 Family Glauconomidae Gray, 1853
                   4 Family Cooperellidae Dall, 1900 see Subfamily Petricolinae d'Orbigny, 1840
                   5 ?Family Turtoniidae Clark, 1855 see Subfamily Turtoniinae Clark, 1855