years

360 篇文章
Hundreds of millions of years after Anthracosaurus,
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Hundreds of millions of years after Anthracosaurus, 石炭鲵出现之后几亿年

anthracosaurus hundreds millions after of years
The evolution from fin to limb took millions of years.
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The evolution from fin to limb took millions of years. 从鳍到肢的进化用了数百万年

limb fin evolution took millions from of the to years
that has remained almost the same for hundreds of millions of years.
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that has remained almost the same for hundreds of millions of years. 已经保持了数亿年 几乎不变

remained hundreds same millions almost has for of that the years
More than 300 million years ago,
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More than 300 million years ago, 3亿多年前

than million more ago years
Its design has been fine-tuned over millions of years.
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Its design has been fine-tuned over millions of years. 它的设计经过了数百万年的精心调整

fine-tuned design millions been has of its over years
345 million years later,
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345 million years later, 3.45亿年之后

later million years
which they ruled undisturbed for the next 40 million years.
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which they ruled undisturbed for the next 40 million years. 在之后的4000万年 不受滋扰地统治着陆地

undisturbed ruled next which million they for the years
where life had thrived for more than a billion years,
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where life had thrived for more than a billion years, 生命已在这里繁荣超过10亿年

thrived had than life more where for billion years a
Millions of years before the age of dinosaurs...
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Millions of years before the age of dinosaurs... 在恐龙时代之前数百万年

dinosaurs age millions of before the years
Billions of years earlier,
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Billions of years earlier, 数十亿年前

billions earlier of years