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A mass dinosaur grave in western China contains fossils of a bizarre T. rex ancestor, a triceratops ancestor, an ancient crocodilian, and nearly 40 more species dating back 160 million years ago, a time when little is known about dinosaur history.
Found In Their Death Throes
Find bones to bring dinos to life.Play Game
Scientists Recreate Dino Muscles
Major dino discoveries change our theories.