1. Today, most researchers agree that birds are, indeed, a branch of the Dinosauria.
今天，多数研究人员都一致同意鸟类的确是恐龙的分支物种。
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2. Now, taxonomists argue that since birds are descended from dinosaurs they should be classified merely as a subgroup of the Dinosauria.
现在，分类学家认为，既然已经发现鸟类是恐龙的后代，那么它们应当被划分为仅仅是恐龙的一个子群。
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3. If a baby chicken's leg bones were enlarged and fossilized, he noted, "there would be nothing in their characters to prevent us from referring them to the Dinosauria."
4. If a baby chicken's leg bones were enlarged and fossilized, he noted, "there would be nothing in their characters to prevent us from referring them to the Dinosauria."
