For the first time, scientists have found eggs with shells inside a dinosaur fossil, strengthening previous conjectures about the ancient reptiles' reproductive physiology.
The dinosaur remains were unearthed in southern China from petrified sediments laid down between 100 million and 65 million years ago. The fragmentary fossil includes six back vertebrae, two adjacent tail vertebrae, and other bones from the dinosaur's pelvic area, says Tamaki Sato of the Canadian Museum of Nature in Ottawa.
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