This is the only picture extant of a stereognathus.

这是仅存的一幅始祖鸟画像.

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Paleontologists also debated whether Archaeopteryx could fly.

古生物学家还讨论了始祖鸟是否会飞的问题.

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However, the study of archaeopteryx has never stopped.

但是, 关于始祖鸟的研究,却一直源源不断.

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Except some with the birds similar characteristic, the archaeopteryx has the beastly foot class dinosaur's characteristic.

除了一些与鸟类相似的特征, 始祖鸟具有很多兽脚类恐龙的特征.

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