Either way, the Paleozoic Era continued to be dominated by the crinoids and other echinoderms.

无论哪种方式，古继续由海百合其他棘皮动物统治。

But it’s no overstatement to say that the Paleozoic Era made life what it is today.

但毫不夸张地说， 古造就了今天的活。

At first, the planet was populated only by the survivors of the Paleozoic.

起初，球上只有 古的幸存者居住。

And both groups spent the last period of the Paleozoic, the Permian, spreading across Pangea.

两群体都度过了古的最后一时期 ，即二叠纪，在盘古大陆蔓延。

The casualties included most of the therapsids and other holdovers from the Paleozoic.

伤亡人员包括 来自古的大部分治疗其他残留物。

So they turned out to be some of the most important index fossils from the whole Paleozoic Era.

因此，它们成为整古最要的指示化石之一。

It lived in the era before the Mesozoic, in the Paleozoic.

它活在中之前的时， 在古。

So the rich silver veins in Montana formed when water stuffed with ionic compounds ran through cracks in paleozoic limestone.

因此，当充满离子化合物的水流过古石灰岩的裂缝时，就形成了蒙大拿州丰富的银矿脉。

Sometimes, too, you will see the term Phanerozoic used to describe the span encompassing the Cenozoic, Mesozoic, and Paleozoic eras.

有时, 您还会看到Phanerozoic一词用于描述涵盖新, 中古的跨度。

But their remains ended up being some of the most important fossils of the entire Paleozoic Era.

但它们的遗骸最终成为整古最要的化石之一。

In fact, many subdivisions of the Paleozoic are actually defined by when certain conodont species first or last appear.

事实上，古的许多细分实际上是根据某些牙形石物种首次或最后出现的时间来定义的。

The first era of our current eon is the Paleozoic Era, which began 541 million years ago.

我们当前的第一时是 古，它始于 5.41 亿年前。

The Paleozoic came to a dramatic end about 252 million years ago with a mass extinction event.

大约 2.52 亿年前，古因大规模灭绝事件而戏剧性地结束了。

But the fact is: the Paleozoic Era was truly a make it or break it time for life on Earth.

古确实 是地球上命的成败时刻。

Dimetrodon dominated the last period of the Palaeozoic, the Permian Period, alongside many other animals that can seem at once familiar and … not.

异齿龙主宰了古的最后一时期， 即二叠纪时期，与许多其他看起来既熟悉又… … 不熟悉的动物一起。

But certain Jurassic and Triassic forms are now commonly admitted to be teleostean; and even some palaeozoic forms have thus been classed by one high authority.

但是某些侏罗纪三叠纪的形式现在普遍被认为是硬骨动物；甚至一些古类型也因此被一位权威机构分类。

With respect to the terrestrial productions which lived during the Secondary and Palaeozoic periods, it is superfluous to state that our evidence is fragmentary in an extreme degree.

至于活在第二纪古的陆物，说我们的证据极其零碎是多余的。

With its lizard-like appearance and that distinctive sail on it back, Dimetrodon is practically the mascot of the Palaeozoic Era, a time before flowers, birds, mammals, and even crocodiles.

凭借其蜥蜴般的外观独特的背帆，异齿龙实际上是古的吉祥物，那时候还没有花朵、鸟类、哺乳动物，甚至鳄鱼。

And they thrived all over the world throughout the Paleozoic Era, with many species schooling in the open ocean like modern sardines, while others stayed closer to shore.

在整古时期， 它们在世界各地繁衍息，许多物种像现沙丁鱼一样在开阔的海洋中学习，而其他物种则留在离海岸较近的地方。

Nowadays, and speaking very generally, geological time is divided first into four great chunks known as eras, Precambrian, Paleozoic, from the Greek meaning old life, Mesozoic, middle life, and Cenozoic, recent life.

现在, 一般来说, 地质时间首先分为四大块, 称为时, 前寒武纪, 古, 来自希腊语, 意思是旧活, 中, 中新, 最近的活。