[2] Tympanotonos is a genus of snail living in brackish water, a gastropod mollusk in the family Potamididae.

[2] Species within this genus include:[2][3] Fossils species within this genus can be found in sediment of Europe, United States, South Africa, Japan, Venezuela and Indonesia from Cretaceous to Quaternary (age range: 84.9 to 0.012 Ma).

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