... THE DEVONIAN PERIOD (泥盆纪) THE CARBONIFEROUS PERIOD (石炭纪) EVOLUTION OF FEATHERS (羽毛的演化) ...
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The Carboniferous period saw the appearance of the first extensive forests on Earth.
石炭纪时期，看到出现的第一广泛的森林在地球上。
Much of the petroleum we use today began some 200 million years ago in the Carboniferous Period.
我们今天使用的很多石油都起至200万年前的石炭纪。
Besides, we also find that there are magma thermal actions during the Carboniferous period and early Permian period.
此外，还发现有早期(石炭纪—二叠纪)岩浆热力作用事件。
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