0 from or referring to the earliest period of time, between about 4,600 and 543 million years ago, from when the earth was formed until the first simple forms of life appeared:
1 the earliest period of time, between about 4,600 and 543 million years ago, from when the earth was formed until the first simple forms of life appeared:
The development of the Atlantic began as far back as Precambrian times.
It is one of the most comprehensive studies for any Precambrian interval.
Precambrian rocks outcrop over vast areas of continental interiors.
The project will adopt a case-study methodology and will focus on scientific studies of the Precambrian .
The Precambrian refers to a stretch of time spanning from the inception of the Earth approximately 4.5 billion years ago to about 540 million years ago.
Algae are found in the fossil record dating back to approximately 3 billion years in the Precambrian.
中文繁体
前寒武紀的(地質年代的最早階段,迄今約46-5.43億年前之間,自地球開始形成起至第一個簡單形式的生命出現)…
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前寒武纪的(地质年代的最早阶段,迄今约46-5.43亿年前之间,自地球开始形成起至第一个简单形式的生命出现)…
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pré-cambriano, pré-câmbrico…
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prekambryjski…
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