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

无论如何，代依然由海百合其他棘皮动物主导。

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.

至于活在第二纪代物，说我们证据极其零碎是多余。

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, 一般说, 地质时间首先分为四个大块, 称为时代, 前寒武纪, 代, 希腊语, 意思是旧活, 中代, 中代新代, 最近活。

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

代确实 是地球上命成败时刻。

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形式现在普遍被认为是硬骨动物；甚至一些代类型也因此被一位权威机构分类。

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.

凭借其蜥蜴般外观独特背帆，异齿龙实际上是代吉祥物，那时候还没有花朵、鸟类、哺乳动物，甚至鳄鱼。

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

伤亡人员包括 代大部分治疗其他残留物。

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代, 中代代跨度。

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

所以它们最终成为整个代最重要标准化石。

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.

它们在整个代期间遍布全球，许多物种像现代沙丁鱼一样成群游弋于开阔海洋中，而其他一些则更靠近海岸线。

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

我们当前第一个时代是 代，它始于 5.41 亿年前。

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

这两个群体都度过了代最后一个时期 ，即二叠纪，在盘大蔓延。

You can learn more at curiositystream.com slash eons Thanks for joining me today in the Konstantin Haase studio and thanks to this month's Eontologists: Jake Hart, Jon Ivy, John Davison Ng, and Steve.

你可以在 curiositystream.com/eons 获取更多内容。感谢今天到康斯坦丁·哈塞工作室与我相聚，同时也感谢本月代学家：杰克·哈特、乔恩·艾维、约翰·戴维森· Ng 史蒂夫。

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

它活在中代之前时代， 在代。

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

但它们遗骸最终成为整个代最重要化石之一。

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

二齿兽在代最后一个时期——二叠纪，与许多其他看起既熟悉又不熟悉动物共存并占据主导地位。

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

但毫不夸张地说， 代造就了今天活。

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

起初，这个星球上只有 代幸存者居住。

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

事实上，代许多分期实际上就是根据某些牙形石物种首次或最后一次出现时间定义。

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

大约2.52亿年前，代以一次大规模灭绝事件戏剧性地结束了。