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Devonian period |
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Devonian periodPeriod of geological time 408-360 million years ago, the fourth period of the Palaeozoic era. Many desert sandstones from North America and Europe date from this time. The first land plants flourished in the Devonian period, corals were abundant in the seas, amphibians evolved from air-breathing fish, and insects developed on land. The name comes from the county of Devon in southwest England, where Devonian rocks were first studied. |
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| The extinction during the Late Devonian period is widely considered one of the five massive extinctions in Earth's prehistory. He also notes that in the Late Devonian period, before tectonic motions carried this region north, the area was located in the tropics. At that time, the end of the Devonian period, some new styles of creatures appeared on the scene. |
Devonian period
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