Bivalvia Linnaeus, 1758
Antutrigonia Leanza & Garate, 1987
Apiotrigonia Cox, 1952
Eotrigonia Cossmann, 1912
Frenguelliella Leanza, 1942
Geratrigonia Kobayashi, 1954
Ibotrigonia
Jaworskiella Leanza, 1942
Laevitrigonia Deecke, 1925
Latitrigonia Kobayashi & Tamura, 1957
Linotrigonia Hoepen, 1929
Lyroschizodus Newell & Boyd, 1975
Malagasitrigonia Cox, 1964
Microtrigonia Nakano, 1957
Minetrigonia
Myophorella Bayle, 1878
Neotrigonia Cossmann, 1912
Neuquenitrigonia Leanza & Garate, 1987
Niobe Koninck, 1873
Nipponitrigonia Cox, 1952
Oistotrigonia Cox, 1952
Orthotrigonia Cox, 1952
Pacitrigonia Marwick, 1932
Paulckella Cooper, Perez & Reyes, 1989
Prosogyrotrigonia Krumbeck, 1924
Psilotrigonia Cox, 1952
Quadratotrigonia Dietrich, 1933
Rutitrigonia Hoepen, 1929
Scabrotrigonia Deecke, 1925
Scaphotrigonia Deecke, 1925
Steinmanella Crickmay, 1930
Trigonia Bruguière, 1789
Turbitrigonia Kelly, 1984
Vaugonia Crickmay, 1930
