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Appalachian Mountains began to erode.At this time, NC probably lay near the equator.
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Plants took over the land. First wingless insects appeared. Also, the first lungfish appeared; they were followed by amphibians.
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Appalachian Mountains were formed. The first vascular plants appeared along with the first plants on land.
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The broadest groupings of animals appeared. NC was underwater and the Kings Mountain Belt was formed, about 540 million years ago.
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First fossil of multi-celled animals survived. Land beneath NC was pulled apart and inland seas emerged.
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- Green algae colonies appeared in the seas. Also, the first mountains were formed in North Carolina. they were called the Grenville Mountains.
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- Dinoaurs appeared and became dominant. Ichthyosaurs and nothosaurs became dominant in the seas and pterosaurs became dominant in the air.
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In the oceans, invertebrates diversified into many new types. The first green plants and fungi appeared on land.
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First vertebrates appeared on land, in coastal swamps. Early sharks were getting more common in the oceans. Regions in the Appalachain mountains were covered with trees.
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Amphibians were diverse and common. The first reptiles appeared.
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Amphibians remained common but small. Reptiles got larger and diversified. Climate cooled, scale trees flourished in-near tropical conditions.The Appalachian Mountains were finally complete.