All the Ediacaran creatures were diploblastic, meaning they were built from two layers of tissue.

埃迪亚卡拉动物都是双胚层的，即它们由两层组织构成。

The fall of the Ediacaran fauna was followed by the creative outburst of the Cambrian period.

埃迪亚卡拉动物群的没落之后是寒武纪的创造性爆发。

Dr Zhu also plans to push back before the Ediacaran period.

朱博士还计划回推到埃迪卡拉纪之前。

The last—and most dramatic—rise in oxygen took place towards the end of the Ediacaran.

最戏剧性的，也是氧气含量最后的增长发生在埃迪卡拉纪末期。

The Ediacaran itself started 635m years ago.

埃迪卡拉纪本身始于 6.35 亿年前。

The Ediacaran Wormworld is dead… Long live the new Wormworld.

埃迪卡拉蠕虫世界已死… … 新的蠕虫世界万岁。

Nor is it agreed that the Ediacaran organisms are in any way ancestral to anything alive today (except possibly some jellyfish).

关于埃迪亚卡拉动物群在哪个方面是不是今天活着的哪种动物（可能除了水母以外）的祖先的问题，意见也很不统一。

Ocean chemistry was changing a bunch in the Ediacaran, so this kind of growth flexibility probably helped rangeomorphs survive.

埃迪卡拉纪的海洋化学发生了巨大变化，因此这种生长灵活性可能帮助了类胚生物生存。

But familiar bodies or not, most of the strange organisms of the Ediacaran disappeared about 540 million years ago.

但无论是否熟悉，埃迪卡拉纪的大部分奇异生物都在大约 5.4 亿年前消失了。

Several groups of Ediacaran animals went extinct completely, and others struggled to adapt.

几组埃迪卡拉纪动物完全灭绝，而其他动物则在努力适应。

Mollusks were some of the first truly complex animals, probably appearing in the late Ediacaran Period.

软体动物是最早真正复杂的动物之一，可能出现在埃迪卡拉纪晚期。

At the very end of the Ediacaran, a new type of trace fossil shows up.

在埃迪卡拉纪末期，出现了一种新型遗迹化石。

Such places are valuable because in most parts of the world there is a gap, known as an unconformity, between the Ediacaran and the Cambrian.

这些地方都很有价值，世界的大部分地区，埃迪卡拉和寒武纪之间都有空白，这种空白被称为不整合面。

What is the Ediacaran Period named after?

埃迪卡拉纪以什么命名？

Which means that during the Ediacaran, the substrate, or seafloor, was very different than it is today.

这意味着在埃迪卡拉纪时期，基底或海底与今天大不相同。

Most ambitiously, Dr Zhu, Dr Xiao and their colleagues hope to drill right through several fossiliferous sites in southern China where Ediacaran rocks turn seamlessly into Cambrian ones.

朱博士，肖博士以及他们的团队很有雄心的希望在中国南部那些无缝连接埃迪卡拉纪和寒武纪的几个含有化石的地方穿凿而过。

Unconformities are places where rocks have been eroded before new ones are deposited, and the widespread Ediacaran-Cambrian unconformity has been a big obstacle to understanding the Cambrian explosion.

不整合面地方的石块在新的沉积之前已经被侵蚀，埃迪卡拉纪-寒武纪之间广泛的不整合面是了解寒武纪大爆发的一个重大障碍。

So while Treptichnus heralded the end of the Ediacaran Wormworld, Skolithos created a substrate perfect for the new Wormworld, the one we still live in today.

因此，虽然 Treptichnus 预示着埃迪卡拉纪蠕虫世界的终结，但 Skolithos 为我们今天仍然生活的新蠕虫世界创造了一个完美的基质。

Trace fossils made by amoeba-like organisms show up early in Earth's history, but the first definite animal trace fossils show up in the Ediacaran.

类变形虫生物制造的痕迹化石出现在地球历史的早期，但第一个明确的动物痕迹化石出现在埃迪卡拉纪。

Which is why it makes sense that Treptichnus shows up in the Ediacaran, then becomes much more common in the early Cambrian.

这就是为什么 Treptichnus 出现在埃迪卡拉纪，然后在寒武纪早期变得更加普遍的原因。