. "The Couches de Barroubio is a geologic formation in France. It preserves fossils dating back to the Ordovician period."@en . . . . . . . . . . . . "Ordovician"@en . . . "Couches de Barroubio"@en . . . . . "The Couches de Barroubio is a geologic formation in France. It preserves fossils dating back to the Ordovician period."@en . . . "1096192624"^^ . "43388624"^^ . . . . . . . "Couches de Barroubio"@en . . "1310"^^ . . . .