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Major Events on Eras - Coggle Diagram
Major Events on Eras
Paleozoic Era
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Mass Extintion
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Some scientists believed it was caused by volcanoes erupting, and others believe it was caused by climate changes.
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Cenozoic Era
Ice Ages
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At the end, sea levels rose and the ice melted
Humans
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Modern day humans appeared around 190,00 years ago
By about 12,000 to 15,000 years ago, all continents were visited by humans except Antartica
Mammals Thrive
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Continents drifted apart, whales and dolphins evolved.
Mammals flourished, some birds and mammals became very large
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