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Slide 1 Proterozoic Neoproterozoic 1 -0.545 bybp Mesoproterozoic 1.6-1 by Paleoproterozoic 2.5- 1.6bybp Slide 2 How is the Proterozoic different from the Archean? 1st example…

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Slide 1 Lecture Topic: Evolutionary history of earth Concept of Era's : evolutionary history divided into eras. –Pre-Darwinian concept, credited to Greeks and Egyptians…

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