Ker Than, reporting for National Geographic News:
[B]ased on a recalculation of how the ancient continents drifted apart, the scientists concluded that Mauritia was once a tiny part of a much larger “supercontinent” that included India and Madagascar, called Rodinia.
The three landmasses “were tucked together in one big continent prior to the formation of the Indian Ocean,” Jamtveit said.
But like a prehistoric Atlantis, Mauritia was eventually drowned beneath the waves when India broke apart from Madagascar about 85 million years ago.