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

起初，这个星球有 古生代的幸存者居住。

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

这两个群体都度过了古生代的最后一个时期 ，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 来自古生代的大部分治疗和其他残留物。

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

事实，古生代的许多细分实际是根据某些形物种首次或最后出现的时间来定义的。

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生代, 中生代和古生代的跨度。

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

但毫不夸张地说， 古生代造就了今天的生活。

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

因此，它们成为整个古生代最重要的指示一。

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古生代最重要的一。

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

因此，当充满离子合物的水流过古生代灰岩的裂缝时，就形成了蒙大拿州丰富的银矿脉。

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

异齿龙主宰了古生代的最后一个时期， 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。

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.

至于生活在第二纪和古生代的陆生生物，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，异齿龙实际是古生代的吉祥物，那时候还没有花朵、鸟类、哺乳动物，甚至鳄鱼。