细致的分析揭示了这块尾巴曾经属于一只年轻的虚骨龙，这一科恐龙包括霸王龙和现代鸟类。
Careful analysis revealed that the tail once belonged to a young coelurosaur, a dinosaur family that includes tyrannosaurs and modern birds.
细致的分析揭示了这块尾巴曾经属于一只年轻的虚骨龙，这一科恐龙包括霸王龙和现代鸟类。
Careful analysis revealed that the tail once belonged to a young coelurosaur, a dinosaur family that includes tyrannosaurs and modern birds.
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