Muschelkalk Sea

…Triassic time, a marine incursion—the Muschelkalk Sea—covered the continental interior of Europe. Seas again transgressed upon the continents between the Early and Late Jurassic and in the Early Cretaceous, leaving extensive beds of sandstone, ironstone, clays, and limestone (see Solnhofen Limestone). A last major transgression of marine waters flooded large…