Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you have been placed in read-only mode.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
A series of strata, of the Middle Tertiary period, of France,abounding in shells, and used by Lyell as the type of his Miocenesubdivision.
Share your knowledge with the community
Browse our collection of 300,000+ community-written definitions
