Classification of the family Mesodesmatidae
Fm. Mesodesmatidae Gray 1840
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G. †Califadesma Saul 1989
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†Califadesma aspris Saul 1989
†Califadesma elafium Saul 1989
†Califadesma tuscanum Saul 1989
G. Donacilla Lamarck 1819
Subfm. Mesodesmatinae Gray 1840
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G. Amesodesma Iredale 1930
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G. †Ceroniola
G. Mesodesma Deshayes
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Mesodesma arctatum Conrad 1831
†Mesodesma costaricensis Olsson 1922
Mesodesma deauratum Turton 1822
Mesodesma donacilla Lamarck 1819
Mesodesma donacium Lamarck 1818
†Mesodesma elongata Abbass 1972
†Mesodesma mariana Glenn 1904
G. †Myadesma Clark 1922
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†Myadesma dalli Clark 1922
†Myadesma eocenica Clark 1938
†Myadesma howei Clark 1922
†Myadesma pacifica Hall and Ambrose 1916
Invalid names: Donacillidae Macpherson and Gabriel 1962 [synonym], Myadesmidae Clark 1922 [synonym]