Cretaceous Period白垩纪

Cretaceous Period

The time when dinosaurs ruled the Earth, from about 145 million to 66 million years ago.

What is it?

The Cretaceous Period was the last period of the dinosaurs. It ended with a mass extinction that killed most dinosaurs. During this time, flowering plants appeared, and many new animals evolved. The gar fish lived during the Cretaceous and survived the extinction. You learned that gar fish have existed for over 100 million years, since the Cretaceous period, and are considered living fossils.

Why it matters

The Cretaceous Period is important for understanding the history of life on Earth. It shows how life changed and how some species, like the gar fish, survived major catastrophes.

Where you've seen it

This list grows as you capture more exhibits from the Cretaceous.

Related

白垩纪

恐龙统治地球的时代,大约从1.45亿年前到6600万年前。

这是什么?

白垩纪是恐龙的最后一个时期。它以导致大多数恐龙灭绝的大灭绝事件结束。在此期间,开花植物出现,许多新动物进化。雀鳝鱼生活在白垩纪,并在灭绝中幸存下来。你了解到雀鳝鱼已经存在超过1亿年,自白垩纪以来,被认为是活化石。

为什么重要

白垩纪对于理解地球生命史很重要。它展示了生命如何变化,以及一些物种(如雀鳝鱼)如何在大灾难中幸存。

你在哪里见过它

当你捕捉更多白垩纪展品时,这个列表会增长。

关联

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Last updated by AIAI 最后更新AI 最後更新 · Apr 27, 2026, 01:35 AM · 3 outbound links外出链接外出連結 · 3 inbound links传入链接傳入連結 · path路径路徑 periods/cretaceous