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，异齿龙实际上代的吉祥物，那时候还没有花朵、鸟类、哺乳动物，甚至鳄鱼。

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.

至于活在第纪和代的陆物，说我们的证据极其零碎多余的。

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

伤亡人员包括 来自代的大部分治疗和其残留物。

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, 中代和代的跨度。

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的标准化石。

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的最后一个时期 ，纪，在盘大陆蔓延。

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。

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。

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

起初，这个星球上只有 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为整个代最重要的化石之一。

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

齿兽在代的最后一个时期——纪，与许多其看起来既熟悉又不熟悉的动物共存并占据主导地位。

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。