Tooth buried in bone shows two prehistoric predators tangled across land, sea boundaries

September 29, 2014 3:00 PM

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5 hours ago by Rosaire Bushey

( —About 210 million years ago when the supercontinent of Pangea was starting to break up and dog-sized dinosaurs were hiding from nearly everything, entirely different kinds of reptiles called phytosaurs and rauisuchids were at the top of the food chain.

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