FRANCE: Basin de Paris, Eocene 1108
Gastrochaenoidea
Gastrochaena ampullaria Gastrochaena ampullaria
Gastrochaena ampullaria (8 mm), colno 23237
Bartonian		 Gastrochaena ampullaria (9 mm), colno 43547
Bartonian
Gastrochaena coarctata Gastrochaena coarctata
Gastrochaena coarctata (8 mm), colno 44
Lutetian		 Gastrochaena coarctata (5 mm), colno 53954
Lutetian
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Solemyoidea Nucinelloidea Nuculoidea Nuculanoidea Arcoidea Limopsoidea Mytiloidea Pterioidea Pinnoidea
Limoidea Ostreoidea Plicatuloidea Pectinoidea Anomioidea Unionoidea Lucinoidea Galeomatoidea Cyamioidea
Carditoidea Chamoidea Crassatelloidea Astartoidea Cardioidea Tridacnoidea Mactroidea Solenoidea Tellinoidea
Donacoidea Dreissenoidea Arcticoidea Glossoidea Corbiculoidea Veneroidea Myoidea Gastrochaenoidea Hiatelloidea
Pholadoidea Pholadomyoidea Pandoroidea Clavagelloidea Poromyoidea Cuspidariina