The supercontinent that existed during the Triassic period was Pangaea. It brought most of Earth’s major landmasses together into one enormous continent surrounded by the global ocean Panthalassa.
Pangaea assembled during the late Paleozoic Era, reaching near-complete formation about 335 million years ago. It remained broadly intact through much of the Triassic, which lasted from about 252 to 201 million years ago. Its interior was often extremely dry because moisture had difficulty reaching areas far from the surrounding oceans.
By the latest Triassic and Early Jurassic, tectonic forces began pulling Pangaea apart. The breakup eventually produced the northern landmass Laurasia and the southern landmass Gondwana. Rodinia was an older Precambrian supercontinent, while Laurasia and Gondwana were major fragments created during Pangaea’s breakup—not the name of the Triassic supercontinent itself.