Jian changmaensis is the first non-avian dinosaur found at a paleontological site that has yielded more than 100 specimens of Early Cretaceous birds. Jian changmaensis is the first non-avian dinosaur found at a paleontological site that has yielded more than 100 specimens of Early Cretaceous birds. Jian changmaensis lived in what is now northwestern China roughly 124 to 120 million years ago (Earl... [3336 chars]
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