The breakup of pangaea occurred during the

Answer;

A.  The Triassic period of the Mesozoic Era

Explanation;Pangaea was a super continent that existed about 300 million years ago, instead of the current seven continents.During the Triassic period, the first period of the Mesozoic Era the Earth's landmasses had coalesced to form the super continent Pangaea. By the end of this period the super continent began to divide into two; Laurasia in the north and Gondwana in the south, under the influence of plate tectonics. During the Jurassic Period which was the second segment of the Mesozoic Era that followed the Triassic period, the super-continent Pangaea further split apart.