After the Cretaceous Period, the dinosaurs were gone.

白垩纪结束，恐龙也从此绝迹。

To find such living fossils from as far back as the Cretaceous is extraordinary.

能发现白垩纪的活化石是非同不起的。

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

但这没阻挡恐龙在白垩纪时在此筑巢。

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

披羽蛇翼龙能让白垩纪晚期的其他动物汗毛倒立。

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

这种发现证明这些蜥蜴王在白垩纪就统治海洋。

Cretaceous. Let's delete that as well.

白垩纪。这个也要删掉。

By the end of the Cretaceous, we had some very advanced dinosaurs.

到白垩纪末期，出现一些非常先进的恐龙。

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

埃德蒙顿龙就好像是白垩纪平原上的牛羚。

The study is in the journal Cretaceous Research.

这项研究发表在《白垩纪研究》杂志上。

Castillo said during the Creataceous, marine turtles had increased body sizes.

卡斯蒂略说，在白垩纪时期，海龟的体型增大。

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

我们在马里兰发现的白垩纪早期化石保存在砂岩和粘土岩中。

It lived in coastal wetlands more than 66 million years ago during Earth's Cretaceous Period.

它生活在6600多万年前地球白垩纪时期的沿海湿地中。

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

这一切就发生在6600万年前的白垩纪末期。

This area has also been designated the Korean Cretaceous Dinosaur Coast, or the KCDC.

这一块地域也被命名为“韩白垩纪恐龙海岸”，即 KCDC。

The oldest-known ant fossil dates back about 100 million years to the Cretaceous Period.

已知的最古老的蚂蚁化石可以追溯到大约1亿年前的白垩纪时期。

The era is divided into three periods: Triassic, Jurassic, and Cretaceous.

这个时代分为三个时期：三叠纪、侏罗纪和白垩纪。

It lived during the Cretaceous Period - the final time in the age of the dinosaurs.

它生活在白垩纪——恐龙时代的最后一个时期。

That takes a lot of calcium, a mineral in short supply in the plants of the Cretaceous.

需要消耗很多钙元素在白垩纪，这是一种稀缺的矿物质。

Yeah, man, I'm just stuck in Romania it's the Cretaceous, I'm never going to leave.

是啊，伙计，我被困在罗马尼亚现在是白垩纪，我永远不会离开。

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

白垩纪时期，飞行爬行动物会取代 pelagornithids 这一特殊角色。