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重1200克的恐龙重写了科学界对演化的了解
来自巴塔哥尼亚的近乎完整的恐龙化石正在帮助科学家破解鸟类恐龙的一个奇怪群体的奥秘，即阿尔瓦雷萨龙。阿尔纳谢特里·塞罗波利西尼西斯的化石表明，这些动物在发展出后期特殊特征，如短臂和食蚂蚁的适应性之前变得非常小。重1200克的恐龙是…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-03-10 18:50 GMT+8（北京时间）
#阿尔瓦雷萨龙 #阿尔纳谢特里塞罗波利西尼西斯 #巴塔哥尼亚 #演化 #化石
ScienceDaily This 2-pound dinosaur is rewriting what scientists know about evolution A nearly complete dinosaur skeleton discovered in Patagonia is helping scientists crack the mystery of alvarezsaurs, a bizarre group of bird-like dinosaurs. The fossil of Alnashetri cerropoliciensis reveals that these animals became tiny before developing…
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