Phytosaur vs rauisuchian stock image
By Julio Lacerda
The Chinle Formation of New Mexico preserves a peculiar ecosystem from 210 million years ago, in which the number of big predators was unusually high. One fossil femur bone was found with a tooth still embedded and suggests that here, predators like phytosaurs and rauisuchians were feeding on one another for millions of years.
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