And then there's the overview of the Triassic.

然后接下来是三叠纪的概观。

It led to the rise of dinosaurs during the following Triassic Period.

它导致了接下来的三叠纪时期恐龙的崛起。

The dinosaur fossils are from the Late Triassic period, called the “dawn of the dinosaurs.”

恐龙化石来自晚三叠世时期，被称为“恐龙的黎明”。

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。

Dinosaurs first appear in the fossil record during the Triassic period, some 230m years ago.

恐龙最早出现在三叠纪时期(距约2.3亿年)的化石录中。

This little creature spends its days splashing in Late Triassic swamps with a host of other reptiles.

这种小生物与其它爬行动物一起，游荡在三叠纪的沼泽中。

They do not take over, though, until the end of the Triassic, 201m years ago.

但直至三叠纪末期(距2.01亿年)恐龙才取得地球霸主地位。

In fact, most early Triassic dinosaurs were on the shrimpy side, including predators like the fierce, mule-sized Coelophysis.

事实上，大多数早三叠世的恐龙都处于濒临灭绝，包括肉食动物，比如凶猛的骡，大小的腔骨龙。

Until now, the end of the Triassic has been blamed on massive volcanic eruptions that went on for 600,000 years.

直到现在，人们都一直将三叠纪的终结归因于持续了60万年的大规模火山喷发。

The Triassic (210 million years ago) and Cretaceous (65 million years) each wiped out 70 to 75 percent of species.

三叠纪（2l000万年以前）和自垩纪（6500万年以前）分别消灭了70%-75%的物种。

The Triassic period was an incredibly important 50 million years of evolution.

三叠纪时期是一个非常重要的 5000 万年的演化时期。

Scientists say the late Triassic period was the dawn of the first dinosaurs.

科学家说三叠纪晚期是一批恐龙出现的黎明时期。

Experts think dinosaurs, like those over there, appeared during the Triassic.

专家认为恐龙和那边的恐龙一样，出现在三叠纪时期。

The world was pretty different during the late Triassic period.

三叠纪晚期的世界截然不同。

First was the Permian-Triassic extinction 252 million years ago -- aka the Great Dying.

首先是 2.52 亿年前的二叠纪-三叠纪大灭绝 ——也就是大灭绝。

The stage was set for the first act of the Mesozoic, the Triassic Period.

舞台是为 中生代的一幕，三叠纪。

This is Earth, 250 million years ago, at the beginning of the Triassic Period.

这是地球，距 2.5 亿年前， 三叠纪初期。

In fact, the dicynodonts became the most common group of land vertebrates during the Triassic.

事实上，二齿兽类成为三叠纪最常见 的陆地脊椎动物群。

252 million years ago, between the Permian and Triassic periods, the Earth's land masses gathered together into the single supercontinent Pangaea.

52亿年前， 在二叠纪和三叠纪时期之间，地球上的陆地聚集 成 一个超级大的盘古大陆。

The End-Triassic extinction saw the end of many of the pseudo sukian archosaurs that were dominant during the Triassic.

三叠纪末的灭绝见证了许多在三叠纪期间占主导地位的伪苏氏主龙的终结。