中找到了元素铱岩层，而这通常会被发现于小行星中。 这次灭绝事件杀光了恐龙以及许多其他动植物物种。

The mass extinction event killed off the dinosaurs and many other animal and plant species.

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人类在这里发现了许多稀有鸟类、物种和大量的蕨类植物。

Human find many rare birds species and a lot of ferns here.

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人类在这里发现了许多稀有鸟类、物种和大量的蕨类植物。

Human find many rare birds species and a lot of ferns here.

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