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A crocodilian fossil with big teeth and a doglike skull is now shedding light on the anatomy of a strange group of predators, scientists have revealed. The fossil was unearthed by a municipal worker in a small town in Minas Gerais, Brazil. It dates back 70 million years, near the end of the Age of Dinosaurs.

"Whereas modern-day amphibious crocodiles have low and flat heads, this new find gives us one of the first detailed insights into the head anatomy of this weird group of extinct crocs called Baurusuchia that feature tall, doglike skulls with enlarged canines, and long-limbed body proportions," said researcher Hans Larsson at 9I制作厂免费 in Canada.