Two weeks ago we looked at the Triassic - Jurassic mass extinction, some 200 million years ago, that was caused by a large climatic warming event after the break - up of supercontinent Pangaea led to the release of enormous amounts of first [volcanic] CO2 and then methane [from disturbed clathrates — a positive warming feedback] into the atmosphere. (bitsofscience.org)
A great rift valley formed as the ancient supercontinent Gondwana broke up and Australia separated from Antarctica. (sciencedaily.com)
The earliest known dinosauromorphs lived in parts of the ancient supercontinent Pangaea that are now South America and southern Africa. (sciencemag.org)