Five Kingdoms of Life - Texas A&M International University labs/Proterozoic… · Five Kingdoms of Life 1. Early Proterozoic Stromatolites 2. Banded Iron Formation (2.5 - 2.3 Ga)

Five Kingdoms of Life

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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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