Some 250 million years ago , the earth contained a single landmass known as pangaea .
大约两亿五千万年前,地球只有一块大陆,名曰泛大陆。
When the forest was alive , it sat on the northwestern edge of a large tropical island off the eastern shore of the supercontinent pangaea , the researchers say .
研究人员说,这片森林活着的时候,它位于联合古陆东海岸旁的一个面积较大的热带岛屿的西北角。
The information system pangaea is a public data library on the internet aimed at archiving , publishing and distributing geocoded data with special emphasis on environmental , marine and geological research .
Two hundred and fifty million years ago , as the supercontinent pangaea broke into the seven continents , the stretching landmass tore fissures in the crust of the world , gaping canyons that spread apart and filled with the modern oceans .