The Helvetic Domain (also known as the Helvetic Nappes) (German: ) strikes approximately east-west in a strip, mostly only a few hundred metres wide, right at the northern edge of the Alps with siliciclastic and carbonate rocks of the Cretaceous and the early Tertiary that are overthrust towards the north onto the southern edge of the Molasse Basin. There are mainly shallow marine formations that are, for example, rich in nummulites (the Kressenberg Formation). They represent the inner continental shelf on the southern edge of pre-Alpine Europe and they were not affected by the folding and overthrusting processes of the Alpine Orogeny until relatively late.