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Earliest marine life, trilobites dominate
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). Invertebrates are dominant
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Earliest terrestrial plants and animals
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Earliest amphibians and ammonites
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Earliest reptiles to live on earth
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Many marine animals are dead inculding trilobites
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Earliest Dinosaurs
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Amazing life prosperd
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The K-T exstinction
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Earliest mammals
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Humans came to being
