The assembly of several continents into a single large supercontinent and its later dispersal into individual fragments is a key manifestation of plate tectonics. But the process also presents many open questions: What are the underlying mechanisms of assembly and break-up? Can we unravel the histories of the contributing orogenies? And what is the contribution of continent assembly to crustal growth? This session aims to draw the tectonic evolution of the orogenies that were formed in supercontinent assembly and their disintegration at supercontinent break-up including Arctic and Antarctic areas. We invite contributions that discuss the structural elements that were formed during the collisions and during break-up from a geological, geochemical, and geophysical perspective.