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history of the Earth into major divisions, starting with four eons (Hadean, Archean, Proterozoic, and Phanerozoic), the first three of which are collectively...132 KB (13,782 words) - 04:53, 19 April 2024
dinosaurs and memorised Earth's primary geologic development periods, from the Archean up to the Cenozoic. In the fourth and fifth grades he demonstrated interest...182 KB (17,014 words) - 01:05, 16 April 2024
Lynn Margulis (category Articles covered by WikiProject Wikify from January 2024)Lynn (1992). Symbiosis in Cell Evolution: Microbial Communities in the Archean and Proterozoic Eons, W.H. Freeman, ISBN 0-7167-7028-8 Sagan, Dorion, and...57 KB (5,918 words) - 11:32, 19 April 2024
- explosion where diversity of life on a massive scale took place. Precambrium - Archean: 3.5 bya (billions years ago) - oldest fossils (of bacteria) found. There