Appalachia (Mesozoic)

Appalachia (Mesozoic): In the Mesozoic Era, Appalachia was a land area which is now an eastern part of the USA, separated from Laramidia by the Western Interior Seaway, which shrank and became the Pierre Seaway and finally dried up. Laramidia was roughly what is now the western cordillera area of the USA and Canada.

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