Description:Researchers from the University of Oslo have discovered the remains of a possible lost continent in the Indian Ocean between India and Madagascar. The geologists were studying sand samples from a volcanic island east of Madagascar and stumbled upon remnants of zircon crystals that were identified as being almost 2 billion years old. They think that tectonic plates shifted and sunk the landmass that might have been part of what the researchers have named Mauritia. (1:17)