Venerida
Venerida is een orde van de tweekleppigen.

Families
 † Anthracosioidea Amalitzky, 1892
 † Anthracosiidae Amalitzky, 1892
 † Ferganoconchida Martinson, 1961
 † Shaanxiconchidae B.-P. Liu, 1980

 Arcticoidea Newton, 1891
 Arcticidae Newton, 1891
 † Pollicidae Stephenson, 1953
 Trapezidae Lamy, 1920
 † Veniellidae Dall, 1895

 Chamoidea Lamarck, 1809
 Chamidae Lamarck, 1809

 Cyamioidea Sars, 1878
 Cyamiidae Philippi, 1845
 Neoleptonidae Thiele, 1934
 Sportellidae Dall, 1899

 Cyrenoidea Gray, 1840
 Cyrenidae Gray, 1840
 Cyrenoididae H. Adams & A. Adams, 1857 (1853)
 Glauconomidae Gray, 1853

 Glossoidea J. E. Gray, 1847
 Glossidae Gray, 1847
 Kelliellidae Fischer, 1887
 † Lutetiidae Zhgenti, 1976
 Vesicomyidae Dall & Simpson, 1901

 Hemidonacoidea Scarlato & Starobogatov, 1971
 Hemidonacidae Scarlato & Starobogatov, 1971

 Mactroidea Lamarck, 1809
 Anatinellidae Gray, 1853
 Cardiliidae Fischer, 1887
 Mactridae Lamarck, 1809
 Mesodesmatidae Gray, 1839

 † Palaeanodontoidea Modell, 1964
 † Palaeanodontidae Modell, 1964

 † Prilukielloidea Starobogatov, 1970
 † Prilukiellidae Starobogatov, 1970
 † Senderzoniellidae Betekhtina, Starobogatov & Jatsuk, 1987

 Ungulinoidea Gray, 1854
 Ungulinidae Gray, 1854

 Veneroidea Rafinesque, 1815
 † Isocyprinidae R.N. Gardner, 2005
 Neoleptonidae Thiele, 1934
 Veneridae Rafinesque, 1815