将独立的「鸟纲」置于「恐龙总目 兽脚亚目」的分类下是否合理?以及翼龙与鸟类存在演化上的关系吗? 知乎 Template




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tomski将独立的「鸟纲」置于「恐龙总目 兽脚亚目」的分类下是否合理?以及翼龙与鸟类存在演化上的关系吗? 知乎 coloring