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What event characterized the Paleozoic era?

User Stb
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Answer:

The event that characterizes the Paleozoic era is the Cambrian explosion, according to which a large number of biological class prevalent today are primitive of fish and corals that evolved during that era.

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User Somedotnetguy
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the growth of plants and formation of land mammals characterized the paleozoic era.
User Gillonba
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