The hills are remnants of an earlier geological era, scraped bare of most soil and exposed to the elements.

这些山丘是早期地质时代的遗留物，大部分土壤已被刮光，遭受风吹日晒。

But have we really ushered in a new geological era, the so-called Anthropocene?

但是，我们真的迎来了一个新的地质时代，所谓的“人类世”吗？

Looking back at FogBugz circa August 2006 (version 5.0) feels a bit like examining the fossil record from a distant geological era.

回头看5.0版的FogBugz，大概是06年8月份推出的，就好像在审视遥远地质时代的化石。

Some elementary anomalies of indium and other elements have been found at the bottom of the stratum, it can be used as the evidence to separate geological era.

前人在该套地层底部发现了铱等元素异常，认为可作为划分其地质时代的依据。

The soil contains evidence of the influence of man since the Stone age, bose explains, and this age has already been treated as an independent geological era for a long time.

土壤中含有着石器时代的人影响的证据，波瑟解释说，这一个时期作为一个独立的地质时代来说已经有很长一段时间了。

According to the records of early human activities, Nihewan strata is an invaluable geological relic that has undergone the evolution of the earth and creations since the later Cenozoic Era.

记录中国北方晚新生代以来地球演化、生物进化与古人类活动的“泥河湾层” ，是珍贵的地质遗迹。

Like the Palaeozoic Era, the Mesozoic Era has been divided into smaller units of geological time called period.

如同古生代一样，中生代也可划分成一些叫纪的较小的时间单位。

The second major era of geological time which lasted from the end of the Palaeozoic era about 225 million years ago, to the start of the Tertiary, some 70 million years ago.

中生代是地质时期的第二个大时代，从大约2.25亿年前的古生代末延续到约7千亿年前的第三纪初。