Cretaceous. Let's delete that as well.

白垩。个也要删掉。

Quetzalcoatlus would make all other animals in the Late Cretaceous stare.

披羽蛇翼龙能让白垩晚的其他动物汗毛倒立。

Well, Edmontosaurus was sort of the Wildebeest of the Cretaceous plains.

埃德蒙顿龙就好像是白垩平原上的牛羚。

Evidence that these lizard kings dominated the oceans in the Cretaceous period.

种发现证些蜥蜴王在白垩就统治海洋。

But that didn't stop dinosaurs from nesting there during the Cretaceous period.

但没阻挡恐龙在白垩在此筑巢。

The early Cretaceous fossils that we find in Maryland are preserved in sandstones and clay-stones.

我们在马里发现的白垩早化石保存在砂岩和粘土岩中。

That happened 66m years ago, at the end of the Cretaceous period.

一切就发生在6600万年前的白垩末。

In the late Cretaceous period, temperatures inexplicably began to climb.

在晚白垩气温莫名地又开始攀升。

All these Cretaceous plant eaters, with their complicated apparatus, they're all much more sophisticated.

所有些白垩的食草动物都有其复杂的防御器官，它们都是很高级的生物。

During the Cretaceous period, 140 million years ago, this dinosaur sported a neck of dangerous looking spines.

在一亿四千万年前的白垩，种恐龙的脖子上长着看起来很危险的刺。

That is fair enough. Such landscapes were common during the beasts' heydays, the Jurassic and Cretaceous periods.

很合理，因为样的景观在侏罗和白垩的野兽鼎盛很常见。

Protostega was a Cretaceous sea turtle that lived about 85 million years ago near modern North America.

原盖龟是一种白垩海龟，大约8500万年前生活在现代北美附近。

A Quetzalcoatlus could be seen as a Cretaceous stealth bomber... Air-to-ground weaponry at its finest.

风神翼龙可谓白垩的隐形轰炸机...它拥有最先进的空对地武器。

In the case of pelagornithids, this particular role would be filled by flying reptiles in the Cretaceous period.

白垩，飞行爬行动物会取代 pelagornithids 一特殊角色。

The earliest known bird, Archaeopteryx, lived during the Jurassic, the period before the Cretaceous.

人类所熟知的最古老鸟类始祖鸟生活在白垩之前的侏罗。

The Cretaceous period was much cooler than that of the Jurassic that preceded it.

白垩远比之前的侏罗更加寒冷。

The findings suggest large sizes in marine turtles developed independently in separate Cretaceous lineages in North America and Europe.

研究结果表，在北美和欧洲不同的白垩谱系中，体型较大的海龟独立发育。

During the mid-Cretaceous period, the world's environment was changing globally.

白垩中叶正值全球环境不断变化的。

I'm going to delete " cretaceous, " I'm going to delete " Cenozoic" and I'm going to delete " iridium."

我要删除“白垩”、“新生代”、“铱”。

The best-documented such impact took place 65 million years ago at the end of the Cretaceous period of geological history.

记载最完整的种灾难曾发生在6500万年前，在地质历史阶段的白垩末。