About 125 million years from now, the Atlantic Ocean is predicted to stop widening and begin to shrink because some of the Mid-Atlantic Ridge will have been subducted. In this scenario, a mid-ocean ridge between South America and Africa will probably be subducted first; the Atlantic Ocean is predicted to have narrowed as a result of subduction beneath the Americas. The Indian Ocean is also predicted to be smaller due to northward subduction of oceanic crust into the Central Indian trench. Antarctica is expected to split into two and shift northwards, colliding with Madagascar and Australia, enclosing a remnant of the Indian Ocean (called the Indo-Atlantic Ocean), and creating the supercontinent Terra Orientalis.