FRANCE: Eocene, Lutetian, Normandy, Bivalvia: Screen 1
Arca angusta Arca articulata
Arca angusta (16 mm) Arca articulata (19 mm)
Arca callirhyza Arca constantinensis
Arca callirhyza (9 mm) Arca constantinensis (10 mm)
Arcoidea Limopsoidea Mytiloidea Pterioidea Ostreoidea Plicatuloidea Pectinoidea Lucinoidea Carditoidea Chamoidea
Crassatelloidea Cardioidea Veneroidea Myoidea
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