Landmasses from Earth’s distant past are split into cratons, supercratons, microcontinents, continents, and supercontinents. Gondwana, Laurentia, Pangea, and Rodinia were supercontinents.

Tectonic pulses along the late Paleozoic western margin of Laurentia have been driven by oblique continent-continent collisions on the other margins of the continent, first in Late ...