About 50 million years ago, the Indian subcontinent was drifting closer to Asia and squeezing out the Tethys Sea along its northern fringes. Mishra and his colleague Hans Thewissen, a Dutch-American palaeontologist, looked around bright red and yellow rocks in Kutch belonging to a geological epoch called the Eocene which was a time of balmy global weather. In the 1980s …
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