Classification of the family Synaptidae
Fm. Synaptidae Burmeister 1837
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G. Calcancora Frizzell and Exline 1955
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†Calcancora kistnai Jafar 1970
†Calcancora mississippiensis Frizzell and Exline 1955
†Calcancora venusta Reich and Wiese 2010
G. Chiridota Eschscholtz 1829
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†Cheirodota traquairii Etheridge 1881
†Chiridota atava Waagen 1867
†Chirodota vetusa Schwager 1865
G. †Prosynapta Spandel 1898
G. †Pseudocaudina Broili 1926
G. †Rigaudites Frizzell and Exline 1957
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†Rigaudites cuvillieri Deflandre-Rigaud 1949
†Rigaudites ernsti Reich and Wiese 2010
Rigaudites indicus Soodan 1977
Rigaudites rajui Soodan 1977
Rigaudites sastrii Soodan 1977
Rigaudites singhi Soodan 1977
Rigaudites subcircularia Soodan 1977
G. Synapta Eschscholtz 1829