How did Pangea affect Triassic climates on land?

The formation of the supercontinent Pangea significantly influenced Triassic land climates by reducing the area covered by continental shelf seas, which contributed to widespread aridity across much of the landmass.1

Because of its immense size, Pangea experienced a strongly seasonal continental climate characterized by hot summers and cold winters. While evidence such as evaporites, dune deposits, and red sandstones points to extreme dryness, other findings—including fluvial sediments—suggest strong seasonal precipitation. This contradiction is largely resolved by the theory of a monsoonal climate, where cross-equatorial winds brought heavy seasonal rains to various regions.1

Additionally, the interior of the supercontinent was generally cooler and more arid than its edges. In contrast, high-latitude regions during the later Triassic experienced more humid conditions, as evidenced by the presence of coal deposits in areas like Antarctica and Russia, which indicate lush vegetation and poor drainage.21