This was the end of the Permian period, and of the era of life called the Paleozoic.
这就是二叠纪以及整个古生代的终结。
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。
Recent evidence suggests, however, that the end-Permian may have been long in the making.
但是，最近的证据显示，这次大灭绝的形成时间很长。
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。
The granite of the "Suhler Scholle " is capped with Permian sediments and igneous deposits.
苏勒·肖勒花岗岩上覆盖着二叠纪沉积物和火成岩。
Grasses did not exist at that time but it may have fed on stems or leaves of Permian flora.
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。
Most rock sequences that straddle the end of the Permian are either incomplete or hard to date.
二叠纪末期大部分岩石记录要么残缺不全，要么难以断代。
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%。
As Permian life-forms declined, they reached a fatal threshold and species succumbed to mass extinction.
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。
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。
Upper Jurassic red bed cover directly on coal measure strata of Permian and Carboniferous system in Yanzhou coal field.
兖州煤田的上侏罗统红层直接覆盖于二叠、石炭系煤系地层之上。
Emergence stratums are of Sinian, Devonian, Permian, Trias and intrusive granite dike and coarse - grained granite dike.
出露地层为震旦系、泥盆系、二叠系、三叠系以及侵入的花岗岩脉和花岗伟晶岩脉。
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。
The end of the Permian period, 252m years ago, was marked by the biggest extinctionof life known to have happened on Earth.
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 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。
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。
Previously, the only dateable layers were from the moment the Permian ended and from a subsequent volcanic event some 14m years later.
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。
The Permian event has attracted much less attention than other mass extinctions because mostly unfamiliar species perished at that time.
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。
Paul Wignall and others have found sites where marine fossil deposits reached a peak of diversity at the very end of 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。
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。
Glaciation, Young claims, has occurred throughout Earth's history, and there is evidence that it occurred toward the end off the Permian period.
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。
Eurypterid: any of various large segmented aquatic arthropods of the order eurypterida that existed from the ordovician period to the Permian period.
(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。
Eventostratigraphic boundary and biostratigraphic boundary have to be clearly distinguished in the study of the Permian-Triassic boundary in South China.
华南二叠-三叠系界线研究应严格区分事件地层界线与生物地层界线。
It may be economic to establish a clean-coal plant in or near the Permian Basin, trucking in the coal from Wyoming and selling the CO2 to nearby oil operators.
也许在帕米亚盆地附近建个洁净煤工厂有利可图，从怀俄明(Wyoming)运入煤炭，再把二氧化碳卖给附近的采油者。
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。
The emphases of this study are the stratigraphic subdivision, correlation and the distribution of Carboniferous and Permian in the coal bed of Jiyang Depression of Shandong.
本文研究的重点是济阳坳陷煤成气的层位石炭、二叠系的划分与对比及地层的残余厚度分布。
Vertically, 3sets of source rocks including the Lower Cambrian, the Middle-o-Upper Ordovician-Lower Silurian and the Permian were developed in Chinese Paleozoic Marine basins.
研究认为中国古生代海相盆地在纵向上主要发育下寒武统、中上奥陶统—下志留统和二叠系3套烃源岩。
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。
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