Gondwana breaks apart
The southern continent of Gondwana split up: the South Atlantic opened between South America and Africa, India headed north, and Antarctica and Australia drifted apart.
USGS · Public domain · Source
From about 180 million years ago the eastern half of Gondwana (Antarctica, India, Australia) began to separate from the western half (South America, Africa). About 130 million years ago South America and Africa pulled apart and the South Atlantic opened — which is why their coastlines fit like pieces of a puzzle.
India broke away from Madagascar and raced north toward Asia at around 15 cm a year. Australia parted from Antarctica about 45 million years ago, and Antarctica, left alone and ringed by a cold circumpolar current, began to be buried in ice about 34 million years ago.