The third major and final phase of the break - up of Pangaea occurred in the early Cenozoic (Paleocene to Oligocene). Laurasia split when North America / Greenland (also called Laurentia) broke free from Eurasia, opening the Norwegian Sea about 60 -- 55 Ma. The Atlantic and Indian Oceans continued to expand, closing the Tethys Ocean.
what were the names of the two smaller supercontinents that formed when pangaea broke apart
Laurasia Eurasia