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

起初，这星球上只有 代的幸存者居住。

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代最重要的化石之一。

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

所以它们最终成代最重要的标准化石。

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

但毫不夸张地说， 代造就了今天的活。

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

这两群体都度过了代的最后一时期 ，即二叠纪，在盘大蔓延。

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

事实上，代的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的时间来定义的。

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

伤亡人员包括 来代的大部分治疗和其他残留物。

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代石灰岩的裂缝时，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代, 中代和代的跨度。

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

二齿兽在代的最后一时期——二叠纪，与许多其他看起来既熟悉又不熟悉的动物共存并占据主导地位。

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.

至于活在第二纪和代的物，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和独特的背帆，异齿龙实际上是代的吉祥物，那时候还没有花朵、鸟类、哺乳动物，甚至鳄鱼。

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。感谢今天来到康斯坦丁·哈塞工作室与我相聚，同时也感谢本月的代学家：杰克·哈特、乔恩·艾维、约翰·戴维森· Ng 和史蒂夫。