中国发现1250万年前的恐龙，身上有空心刺
科学家在中国发现了一具1250万年前的食草恐龙化石，化石保存极为完好，甚至可见到细胞结构。更令人惊讶的是，这种恐龙身上长有空心刺，之前从未在恐龙身上发现过类似结构。
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-02-18 14:10 GMT+8（北京时间）
#恐龙 #化石 #中国 #科学发现
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