而且，恐爪龙的骨骼结构与始祖鸟很相似。
Moreover, its bone structure was similar to that of Archaeopteryx.
有很多很多的特征证明着‘郑氏晓廷鸟’和‘始祖鸟’只是一种叫做恐爪龙类的恐龙的种类，而不是鸟。
There are many, many features that suggest that Xiaotingia and Archaeopteryx are a type of dinosaur called Deinonychosaurs rather than birds.
有很多很多的特征证明着‘郑氏晓廷鸟’和‘始祖鸟’只是一种叫做恐爪龙类的恐龙的种类，而不是鸟。
There are many, many features that suggest that Xiaotingia andArchaeopteryx are a type of dinosaur called Deinonychosaurs rather than birds.
斯切米茨和藻谷测量了33具恐龙、始祖鸟和翼龙化石的巩膜环内围和外围及眼眶大小。
Schmitz and Motani measured the inner and outer dimensions of this ring, plus the size of the eye socket, in 33 fossils of dinosaurs, ancestral birds and pterosaurs.
一些分析表明了‘始祖鸟’是处于基底的鸟类，另一些分析则表明它越过了侧道直接进入了恐爪龙类。
Some show Archaeopteryx as the basal bird; others show it hopped sideways into the Deinonychosaurs.
初龙是鳄鱼、恐龙类以及和现代鸟类的始祖。这次的发现有助于解释2.5亿年前初龙在世界范围内大规模存在的原因。
The findings could help to explain why the archosaurs — the ancestors of crocodilians, dinosaurs, and modern birds — emerged to dominate the world some 250 million years ago.
初龙是鳄鱼、恐龙类以及和现代鸟类的始祖。这次的发现有助于解释2.5亿年前初龙在世界范围内大规模存在的原因。
The findings could help to explain why the archosaurs — the ancestors of crocodilians, dinosaurs, and modern birds — emerged to dominate the world some 250 million years ago.
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