The trail of footprints left by a huge sauropod and a T. rex.-like dinosaur may record a predatory chase
Discovered: Glen Rose, Texas, 1938
Age: 111 million years
Location: Part at the American Museum of Natural History
The massive sauropod fled along the shore closely pursued by a huge predator similar to T. rex. The trail of footprints they left behind survived for over 100 million years.
Exactly what happened is not clear. Roland Bird of the American Museum of Natural History, who discovered the footprints in 1938, thought they showed an actual attack in progress, with the predator running alongside the sauropod and at one point sinking its teeth into the victim, missing a step as it was lifted off the ground.
Modern researchers are more cautious. There is no clear evidence of an attack, says James Farlow of Indiana ...
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