鹦鹉螺化石，这些螺旋状的贝壳，经常分布在二叠纪的化石群中。
Ammonoids, with their tightly coiled, spiral shells, are also widespread in the Permian fossil record.
石炭纪的，石炭系的：(属于或表示)地质上的一个分段，即紧跟着泥盆纪而早于二叠纪的古生代的。
Carboniferous: of, belonging to, or denoting a geologic division of the Paleozoic Era following the Devonian and preceding the Permian.
大约25千万年前，也就是所说的二叠纪的末端时候，经过一系列火山剧烈喷发和毁灭性全球升温，生命几乎消失殆尽。
Some 250 million years ago, at the end of the time known as the Permian, life was all but wiped out during a sustained period of massive volcanic eruption and devastating global warming.
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。
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.
随着二叠纪生命形式的衰退，它们达到了一个致命的临界点，物种最终走向了大灭绝。
As Permian life-forms declined, they reached a fatal threshold and species succumbed to mass extinction.
二叠纪大灭绝事件比其他大灭绝事件受到的关注要少得多，因为那时灭绝的大多是我们不熟悉的物种。
The Permian event has attracted much less attention than other mass extinctions because mostly unfamiliar species perished at that time.
杨说，冰川作用在地球的整个发展历史中都有发生，有证据表明它发生在二叠纪末期。
Glaciation, Young claims, has occurred throughout Earth's history, and there is evidence that it occurred toward the end off the Permian period.
保罗·维格纳尔和其他人发现了在二叠纪末期海洋化石沉积达到多样性高峰的地点。
Paul Wignall and others have found sites where marine fossil deposits reached a peak of diversity at the very end of the Permian period.
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。
First, that there was not one mass extinction at the end of the Permian, but several.
生存在二叠纪末的许多丢失的物种会产生新的生物体的机会来取代原有物种。
The loss of so many species at the end of the Permian gave new creatures the chance to take their place.
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。
Although not one of the "big five" mass extinctions, the mid-Permian extinction has long been considered an important, if puzzling, event.
几位CTAM营地的工作人员安排了为期一天的行程，到营地东侧的亚历山德拉皇后山脉露营并勘察暴露在外的二叠纪沉积岩中的舌羊齿化石。
A few of the CTAM staff organized a day trip to the mountains of the Queen Alexandra Range east of camp to look at the Glossopteris fossils preserved in the Permian sediments exposed there.
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。
The end of the Permian period, 252m years ago, was marked by the biggest extinction of life known to have happened on Earth.
这就是二叠纪以及整个古生代的终结。
This was the end of the Permian period, and of the era of life called the Paleozoic.
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。
The die-off was surpassed only by the gargantuan Permian extinction 250 million years ago.
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。
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.
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。
The Permian period, which ended in the largest mass extinction the Earth has ever known, began about 299 million years ago.
两亿五千两百万年前的二叠纪末期，发生了地球上迄今为止所知的最大一次生物灭绝。
The end of the Permian period, 252m years ago, was marked by the biggest extinctionof life known to have happened on Earth.
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。
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.
在此之前唯一可以确定年代的地层是二叠纪结束的时刻，以及大约1400万年后的火山爆发事件。
Previously, the only dateable layers were from the moment the Permian ended and from a subsequent volcanic event some 14m years later.
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。
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.
地球在她45亿年的历史长河中，已经见证了几次大规模的灭绝，但是发生在二叠纪末的整个重大事件在规模上堪称史无前例。
The Earth has witnessed several mass extinctions in its 4.5bn year history, but the event that struck at the end of the Permian was unequaled in scale.
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。
When Grasby and his team analyzed rocks from just before the Permian mass extinction, they noticed unusual microscopic particles.
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%。
Permian-Triassic The worst mass extinction took place 250m years ago, killing 95% of all species.
5亿年前，二叠纪(the Permianperiod)接近尾声，这时大约80%至96%的海洋生物和接近70%的陆地动物消失，其中的原因至今不明。
At the end of the Permian period 250m years ago, between 80% and 96% of all living Marine species were extinguished, along with 70% of land animals. The cause is unclear.
(古生)板足鲎目的：一种巨大的、有节的，属于板足鲎目的水生节肢动物，生存于奥陶纪到二叠纪时期。
Eurypterid: any of various large segmented aquatic arthropods of the order eurypterida that existed from the ordovician period to the Permian period.
2000年，科学家们做出了一个更加令人震惊的宣布——他们复活了有2亿5000万年之久的被称为二叠纪杆菌的细菌。
In 2000, scientists made an even more astonishing claim - that they had brought to life a 250 million-year-old bacterium dubbed Bacillus permians.
本文研究了广西扶绥县柳桥地区二叠纪末期的浅水相小有孔虫动物群。
A shallow water smaller foraminifera fauna is studied from limestone intercalations of the upper Permian chert from Liuqiao area, Guangxi Zhuang Autonomous Region, China.
然而剑齿龟生活的年代还没有草生长，因而食物来源可能是二叠纪植物群的茎或叶。
Grasses did not exist at that time but it may have fed on stems or leaves of Permian flora.
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