Pangean megamonsoon
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The Pangean megamonsoon refers to the theory that the supercontinent Pangea experienced a distinct seasonal reversal of winds, which resulted in extreme transitions between dry and wet periods throughout the year. Pangea was a conglomeration of all the global continental land masses, which lasted from the late Carboniferous to the mid-Jurassic.[1] The megamonsoon intensified as the continents continued to shift toward one another and reached its maximum strength in the Triassic, when the continental surface area of Pangea was at its peak.[2][3]
The megamonsoon would have led to immensely arid regions along the interior regions of the continent. Those areas would have been nearly uninhabitable, with extremely hot days and frigid nights. The coasts experienced seasonality, however, and transitioned from rainy weather in the summer to dry conditions during the winter. [3]