Euheterodonta
Families
Subterclass Euheterodonta
- Superorder Anomalodesmata Dall, 1889
- Superfamily Clavagelloidea d'Orbigny, 1844
- Clavagellidae d'Orbigny, 1844
- Penicillidae Gray, 1858
- Superfamily Cuspidarioidea Dall, 1886
- Cuspidariidae Dall, 1886
- Halonymphidae Scarlato & Starobogatov, 1983
- Protocuspidariidae Scarlato & Starobogatov, 1983
- Spheniopsidae J. Gardner, 1928
- Superfamily Myochamoidea Carpenter, 1861
- Cleidothaeridae Hedley, 1918 (1870)
- Myochamidae Carpenter, 1861
- Superfamily Pandoroidea Rafinesque, 1815
- Lyonsiidae P. Fischer, 1887
- Pandoridae Rafinesque, 1815
- Superfamily Pholadomyoidea King, 1844
- Parilimyidae Morton, 1981
- Pholadomyidae King, 1844
- Superfamily Poromyoidea Dall, 1886
- Cetoconchidae Ridewood, 1903
- Poromyidae Dall, 1886
- Superfamily Thracioidea Stoliczka, 1870 (1839)
- Clistoconchidae Morton, 2012
- Laternulidae Hedley, 1918 (1840)
- Periplomatidae Dall, 1895
- Thraciidae Stoliczka, 1870 (1839)
- Superfamily Verticordioidea Stoliczka, 1870
- Euciroidae Dall, 1895
- Lyonsiellidae Dall, 1895
- Verticordiidae Stoliczka, 1870
- Superorder Imparidentia Bieler, P. M. Mikkelsen & Giribet, 2014
- Order Adapedonta Cossmann & Peyrot, 1909
- Superfamily Hiatelloidea J.E. Gray, 1824
- Hiatellidae Gray, 1824
- Superfamily Solenoidea Lamarck, 1809
- Pharidae H. Adams & A. Adams, 1856
- Solenidae Lamarck, 1809
- Order Cardiida Ferussac, 1822
- Superfamily Cardioidea Lamarck, 1809
- Cardiidae Lamarck, 1809
- Pterocardiidae Scarlato & Starobogatov, 1979 †
- Superfamily Tellinoidea Blainville, 1814
- Order Hippuritida Newell, 1965 †
- Suborder Hippuritidina Newell, 1965 †
- Superfamily Caprinoidea d'Orbigny, 1847 †
- Antillocaprinidae Mac Gillavry, 1937 †
- Caprinidae d'Orbigny, 1847 †
- Caprinuloideidae Damestoy, 1971 †
- Ichthyosarcolitidae Douvillé, 1887 †
- Superfamily Radiolitoidea d'Orbigny, 1847 †
- Caprinulidae Yanin, 1990 †
- Caprotinidae Gray, 1848 †
- Diceratidae Dall, 1895 †
- Hippuritidae Gray, 1848 †
- Monopleuridae Munier-Chalmas, 1873 †
- Plagioptychidae Douvillé, 1888 †
- Polyconitidae Mac Gillavry, 1937 †
- Radiolitidae d'Orbigny, 1847 †
- Trechmannellidae Cox, 1934 †
- Suborder Requieniidina Skelton, 2013 †
- Superfamily Requienioidea Kutassy, 1934 †
- Epidiceratidae Rengarten, 1950 †
- Requieniidae Kutassy, 1934 †
- Incertae sedis
- Superfamily Chamoidea Lamarck, 1809
- Chamidae Lamarck, 1809
- Superfamily Cyamioidea Sars, 1878
- Cyamiidae G.O. Sars, 1878
- Galatheavalvidae Knudsen, 1970
- Sportellidae Dall, 1899
- Superfamily Gaimardioidea Hedley, 1916
- Gaimardiidae Hedley, 1916
- Superfamily Galeommatoidea J.E. Gray, 1840
- Basterotiidae Cossmann, 1909
- Galeommatidae Gray, 1840
- Kelliidae Forbes & Hanley, 1848
- Lasaeidae Gray, 1842
- Montacutidae W. Clark, 1855
- Superfamily Gastrochaenoidea Gray, 1840
- Gastrochaenidae Gray, 1840
- Superfamily Kalenteroidea Marwick, 1953 †
- Kalenteridae Marwick, 1953 †
- Superfamily Mactroidea Lamarck, 1809
- Anatinellidae Deshayes, 1853
- Cardiliidae P. Fischer, 1887
- Mactridae Lamarck, 1809
- Mesodesmatidae Gray, 1840
- Superfamily Sphaerioidea Deshayes, 1855 (1820)
- Sphaeriidae Deshayes, 1855 (1820)
- Superfamily Ungulinoidea Gray, 1854
- Ungulinidae Gray, 1854
- Order Lucinida Gray, 1854
- Superfamily Lucinoidea J. Fleming, 1828
- Lucinidae J. Fleming, 1828
- Superfamily Thyasiroidea Dall, 1900 (1895)
- Thyasiridae Dall, 1900 (1895)
- Order Megalodontida Starobogatov, 1992 †
- Superfamily Megalodontoidea Morris & Lycett, 1853 †
- Megalodontidae Morris & Lycett, 1853 †
- Pachyrismatidae Scarlato & Starobogatov, 1979 †
- Order Modiomorphida Newell, 1969 †
- Superfamily Modiomorphoidea S. A. Miller, 1877 †
- Modiomorphidae S. A. Miller, 1877 †
- Palaeopharidae Marwick, 1953 †
- Order Myida Stoliczka, 1870
- Superfamily Dreissenoidea Gray, 1840
- Dreissenidae Gray, 1840
- Superfamily Myoidea Lamarck, 1809
- Corbulidae Lamarck, 1818
- Erodonidae Winckworth, 1932
- Myidae Lamarck, 1809
- Superfamily Pholadoidea Lamarck, 1809
- Pholadidae Lamarck, 1809
- Teredinidae Rafinesque, 1815
- Xylophagidae Purchon, 1941
- Order Venerida Gray, 1854
- Superfamily Arcticoidea Newton, 1891 (1844)
- Arcticidae Newton, 1891 (1844)
- Trapezidae Lamy, 1920 (1895)
- Superfamily Cyrenoidea Gray, 1840
- Cyrenidae Gray, 1840
- Cyrenoididae H. Adams & A. Adams, 1857 (1853)
- Glauconomidae Gray, 1853
- Superfamily Glossoidea J.E. Gray, 1847 (1840)
- Glossidae Gray, 1847 (1840)
- Lutetiidae Zhgenti, 1976 †
- Incertae sedis
- Kelliellidae Fischer, 1887
- Vesicomyidae Dall & Simpson, 1901
- Superfamily Veneroidea Rafinesque, 1815
- Isocyprinidae R. N. Gardner, 2005 †
- Neoleptonidae Thiele, 1934
- Veneridae Rafinesque, 1815
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