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Five Kingdoms of Life
1
Early Proterozoic Stromatolites
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Banded Iron Formation (2.5 - 2.3 Ga)
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Continental Redbeds (starting at 2.3 Ga)
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Prokaryotes vs. Eukaryotes
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Grypania - oldest known megafossil (2.1 Ga)
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Bangiomorpha - oldest accepted eukaryote (1.2 Ga)
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1.4 Ga Arcitarches - possible early eukaryotes
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Endosymbiosis Theory
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Earliest Multi-cellular Organisms ? (900 Ma)
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Edicara Fauna (~640 Ma)
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Edicara Paleocommunity
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Tommotian Fauna - first hard-shelled metazoans
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Anomalocaris - earliest known predator
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541 Ma - The Cambrian Explosion of Life
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