这就肯定了从另外两个过渡的生物化石archaeopteryx(始祖鸟，最古老的鸟类)和Rodhocetus(一种原始鲸)。

This confirms what has been observed in two other transitional fossils, Archaeopteryx (the oldest known bird) and Rodhocetus (a proto-whale).

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科学家们说，据称是地球上最古老最原始的鸟类的“始祖鸟”可能根本就不是一只鸟。

Archaeopteryx, supposedly the oldest and most primitive bird on Earth, might not have been a bird after all, scientists say.

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而这次始祖鸟化石的发现，比先前发现的鸟化石时代更早，层位更低，特征更加原始。

However, this find of archaeopteryx fossils are from a much earlier age, lower in stratus and more primitive in features than previously discovered archaeopteryx.

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而这次始祖鸟化石的发现，比先前发现的鸟化石时代更早，层位更低，特征更加原始。

However, this find of archaeopteryx fossils are from a much earlier age, lower in stratus and more primitive in features than previously discovered archaeopteryx.

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