supercontinent

The very first supercontinent was called Vaalbara and it started forming more than 3.6 billion years ago.

真正意义上的第一个超大陆名叫瓦尔巴拉，它从36亿年前就开始形成了。

Many of us are familiar with the idea that the world's continents once fit snuggly together into one huge single supercontinent called Pangea.

我们之中的许多人熟知一个概念：世界的几片大陆曾经紧紧靠在一起，组成了一个超大陆。 我们称之为泛古陆。

The dino path to dominance appears to have been cleared when the supercontinent Pangea cracked, setting off 600,000 years of volcanic activity that wiped out the dinosaurs’ crocodilian competitors.

恐龙走向繁盛的原因目前看起来开始清楚了，在超级大陆泛大陆开始分裂的时候，持续了600，000年的火山活动，就是这些火山活动摧毁了恐龙的鳄鱼类竞争对手。