A supercontinent that existed during the Paleozoic and Mesozoic eras, about 250 million years ago, before the present-day continents drifted apart.
(plate tectonic theory) a hypothetical continent including all the landmass of the earth prior to the Triassic period when it split into Laurasia and Gondwanaland
(plate tectonics) a hypothetical continent including all the landmass of the earth prior to the Triassic period when it split into Laurasia and Gondwanaland
