During the Cambrian period, 500 million years ago, worm-like creatures were evolving into fish-like creatures.
在5亿年前的寒武纪，似蠕虫生物逐渐演化成似鱼生物。
The basement strata and the migmatite, however, were formed much later, about Cambrian period and early palaeozoic era.
但其基底地层和混合岩形成时代较晚，为寒武纪和下古生代。
Afterward, global large-scale massive volcanic activity in Permian Period generally brought about metamorphism whole middle Cambrian Period volcanic sediment rock in research area.
二叠纪全球性大规模火山活动，致使区内整个中寒武纪的火山沉积岩普遍发生变质。
To be born during this, the Cambrian Explosion—why, I couldn't imagine a better period, really.
在寒武纪生物大爆发这时候降生-我实在没法设想一个更好的时代了，真的。
This period, from 1 billion to 540 million years ago, is known as the "Cambrian explosion" after the riot of diverse life found in the fossil record.
10亿到5亿四千万年之间，就是在化石中发现许多生命之后的寒武纪大爆发时期。
A series of discoveries and studies on ancient life forms in the 20th century demonstrated that Cambrian was a geological period full of the wildest imagination.
20世纪古生物的一系列发现和研究，证明了寒武纪是一个最能激发人们想象力的地质时代。
Prior to this find, scientists were unsure whether such creatures died out in an extinction event during an earlier period known as the Cambrian.
在此之前发现，科学家们不能确定这种生物灭绝事件中死亡一出在一个名为的寒武纪早期。
The research team that studied the fossils described them as Marine animals that lived during the early part of a period that followed the Cambrian, known as the Ordovician.
该研究小组认为，研究这些化石形容，在随后的一个时期的寒武系，奥陶系已知的早期的海洋动物生活的一部分他们。
And then something incredible starts to happen: a tremendous expansion of life into multi-celled forms during a relatively brief period that scientists call the Cambrian Explosion.
接着，令人难以置信的事情发生了：在科学家称为寒武纪爆炸的一个相对短暂的时期内，生命极大地扩展成多细胞形式。
It was represented that the natural gas in the Yingnan 2 gas pool came mainly from the Cambrian source rocks, which was a cracking gas from oil in the Cambrian accumulated in earlier period.
研究指出：英南2气藏天然气主要来源于寒武系烃源岩，为早期聚集的寒武系来源油的裂解气。
It was represented that the natural gas in the Yingnan 2 gas pool came mainly from the Cambrian source rocks, which was a cracking gas from oil in the Cambrian accumulated in earlier period.
研究指出：英南2气藏天然气主要来源于寒武系烃源岩，为早期聚集的寒武系来源油的裂解气。
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