the pieniny klippen belt is divided into numerous tectonic units, but only few of them occur throughout the entire belt. the oldest rocks of the klippen belt are middle jurassic to upper cretaceous. they are in normal stratigraphical positions, with only minor hiatus. large scale crustal shortening caused rocks of different tectonic units and origin to be thrusted over each other and now lying juxtaposed. these tectonic units are: