The Permian extinction, for example, which happened 250 million years ago, is marked by floods of volcanic rock in Siberia that cover an area roughly the size of western Europe.
例如，发生在两亿五千年前的二叠纪物种灭绝就与西伯利亚的火山爆发发生在同一时期。
The Permian extinction-the worst extinction event in the planet's history-is estimated to have wiped out more than 90 percent of all Marine species and 70 percent of land animals.
二叠纪的生命大灭绝，是我们这个星球上最可怕的一次物种灭绝，海洋的90%的生命以及陆地上70%的生命都消失了。
The Permian extinction—the worst extinction event in the planet\'s history—is estimated to have wiped out more than 90 percent of all marine species and 70 percent of land animals.
二叠纪的生命大灭绝，是我们这个星球上最可怕的一次物种灭绝，海洋的90%的生命以及陆地上70%的生命都消失了。
First, that there was not one mass extinction at the end of the Permian, but several.
第一，在二叠纪结束的时候并不是一个大规模灭绝，而是好几个。
Scientists are still debating the cause of the end-Permian extinction, the biggest the Earth has ever known.
科学家们对地球上有史以来最大的二迭纪末大灭绝的原因依然有争议。
Although not one of the "big five" mass extinctions, the mid-Permian extinction has long been considered an important, if puzzling, event.
尽管不是五次物种大灭绝之一，二叠纪中期的物种灭绝依然被长期作为谜一般的事件受到重点关注。
When Grasby and his team analyzed rocks from just before the Permian mass extinction, they noticed unusual microscopic particles.
当Grasby和他的团队分析了“二叠纪灭绝”前的岩石成分后，他们注意到一些不寻常的微观颗粒。
The die-off was surpassed only by the gargantuan Permian extinction 250 million years ago.
只有2亿5000万年前史上空前的二叠纪大灭绝盖过这次灭绝。
Permian-Triassic The worst mass extinction took place 250m years ago, killing 95% of all species.
二叠纪-三叠纪最严重的大灭绝发生在两亿五千万年以前，杀死了所有物种的95%。
The end of the Permian period, 252m years ago, was marked by the biggest extinction of life known to have happened on Earth.
252百万年前的二叠纪晚期以已知的地球上发生过的最惨痛的生物灭绝事件著称。
At the time of the end-Permian extinction, Antarctica was some distance north of its present location, warmer than it is today, and not covered with permanent glaciers.
在二迭纪末时期，南极比现在的位置往北偏一些，比今天热一些，没有覆盖永久冰川。
Finding cenospheres in late Permian rocks worldwide would bolster the notion that the tiny particles played a major role in causing the extinction, says Grasby.
Grasby说，只要在全球范围的二叠纪岩石中发现“煤胞”的存在，那由这些致命微粒导致大灭绝的理念就可以得到极大的佐证。
Researchers suspect that the Siberian Traps eruption, which occurred just 10 million years later, was responsible for the Permian-Triassic extinction, the worst mass dying of all time.
研究者猜测西伯利亚Traps火山在一千万年前的喷发，是造成有史以来最大规模的二叠纪-三叠纪生物灭绝事件的原因。
A bigger mass extinction, at the end of the Permian period 251m years ago, killed 70% of the world's land vertebrates (and 96% of all Marine animals) and paved the way for the age of reptiles.
而更大规模的灭绝发生在25100万年前二叠纪末期，致使世界上70%的陆地脊椎动物(和96%的海洋动物)死亡，同时造就了爬行动物的时代。
The eruption is one of the likely causes of the Permian-Triassic mass extinction event, in which 95% of Marine species and many terrestrial vertebrates, insects and plants died off.
这次喷发是Permian -Triassic绝种事件的可能原因之一，约95%的海洋物种，陆生脊椎动物，昆虫和植物在这次绝种事件中灭绝了。
The Permian period, which ended in the largest mass extinction the Earth has ever known, began about 299 million years ago.
二叠纪开始于2.99亿年前，并以地球上最大规模的物种灭绝而结束。
Representative elements of order Albaillellaria firstly appear in Silurian, which prosperous in Late Devonian, and extinction in end-Permian, is the characteristic group of Late Paleozoic Radiolaria.
阿尔拜虫目放射虫最早的代表出现于志留纪，从晚泥盆世开始繁盛，于二叠纪末期灭绝，是晚古生代特有的放射虫类群。
The study of the ecosystems in the survival and recovery time in the Early Triassic following the end-Permian mass extinction becomes a hotspot.
二叠纪末大灭绝之后，三叠纪初残存期和复苏期生态系研究成为当今热点。
The action must also have played an important role in the mass extinction during the Late Permian and early Triassic.
研究二叠纪末一三叠纪初生物大绝灭事件具有重要作用；
The action must also have played an important role in the mass extinction during the Late Permian and early Triassic.
研究二叠纪末一三叠纪初生物大绝灭事件具有重要作用；
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