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。
The fossils finally have confirmed, to all but a few skeptics, that birds descended from dinosaurs and are the living representatives of a dinosaur lineage called the Maniraptorans.
除了少数几位持怀疑观点的学者外，大多数古生物学家都认为，这些化石最终证实了鸟类起源于恐龙，是手盗龙(Maniraptorans)恐龙谱系的现存代表生物。
There is evidence that all modem turtles are descended from a terrestrial ancestor which lived before most of the dinosaurs.
有证据表明所有现代海龟都有陆生的祖先，他们比大部分恐龙还古老。
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