†Tympanotonos (Eotympanotonus) Chavan 1952 (horn snail)
Gastropoda - Cerithioidea - Potamididae
Alternative spelling: Eotympanotonus
Parent taxon: Tympanotonos according to J.-M. Pacaud and J. Le Renard 1995
See also Sepkoski 2002
Sister taxa: Tympanotonos (Diptychochilus), Tympanotonos (Tympanotonos), Tympanotonos morillensis, Tympanotonos stroppus, Tympanotonos turris
Subtaxa: Tympanotonos (Eotympanotonus) papalis
Ecology: epifaunal grazer
Distribution:
• Eocene of France (3 collections), the United Kingdom (1)
• Paleocene of France (1)
Total: 5 collections including 7 occurrences