The fossil, examined under a microscope and with micro-CT scans, has a conical puncture a sixth of an inch (4 mm) wide that ...

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paddlefish and sturgeon swam in a river that meandered through a flourishing landscape populated by mighty dinosaurs and small mammals at North Dakota’s southwestern corner. Death came from ...

The well-preserved skull belongs to a never-before-seen species of sauropodomorph that potentially grew up to 33 feet long.

According to scientists who maintain that dinosaur extinction came quickly, the impact must have spelled the cataclysmic end. For months, scientists conclude, dense clouds of dust blocked the sun ...

Did dinosaurs lose their dominance suddenly or gradually? Some scientists think the answer lies locked within the remnants of long-dormant volcanoes. Massive beds of ancient lava found around the ...

The terrifying dinosaur of the day ... an attack from an Acrocanthosaurus have been the cause of Borealopelta’s death? In a simulated test, researchers found that Acrocanthosaurus’s bite ...

The end of the Cretaceous Period saw one of the most dramatic mass extinctions Earth has ever seen. Find out what brought about the end of the dinosaurs and many other animals too. The fossil record ...