Liaoning

Long tail fEATHERs—it is thought that these were present on male birds only

Liaoning Province is in northeast China, and the dinosaur-bearing siltstones of the Yixian Formation are in the west.

Long tail fEATHERs—it is thought that these were present on male birds only o Shenyang FoSSiLS CHiPPED FROM THE EARLY CRETACEOUS rocks of China's

N G Liaoning Province have revolutionized the study of dinosaurs.

NORTH In this area, 125 million years ago, small meat-eating dinosaurs and primitive birds lived together in a forested landscape dotted with freshwater lakes. Animals that died and fell into the water were buried by ash from nearby volcanoes. In 1996, the discovery of Sinosauropteryx changed the way people thought about dinosaurs—the Sinosauropteryx fossil had a featherlike coat, strengthening claims that dinosaurs and birds are related.

Korea Bay

Korea Bay r

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Clawed fingers on each wing

PSITTACOSAURUS

CONFUCIUSORNIS

Like today's birds, Confuciusornis had a toothless beak, perched in trees, and ate plants. However, it was related to dinosaurs—its wing fingers were similar to the grasping hands of theropod dinosaurs.

Clawed fingers on each wing

PSITTACOSAURUS

This plant-eating dinosaur had a square skull and curved beak— hence its name, "parrot lizard." Jutting out from the side of its face were cheekbones that formed horns, which may have been used for fighting.

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