Tìm ra tổ tiên khủng long ăn cỏ khổng lồ
Nhà cổ sinh vật học Sankar Chatterjee và các cộng sự của ông thuộc Đại học Texas Tech đã phát hiện thấy một hóa thạch xương khủng long dài khoảng 30ft (9,1 m).
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