Cosmology and astronomy
Life on Earth and in the Universe

History of life on Earth

  1. Earth Formation
  2. Beginnings of Life
  3. Ozone Layer and Eukaryotes Show Up in the Proterozoic Eon
  4. Biodiversity Flourishes in Phanerozoic Eon
  5. First living things on land clarification

Ozone Layer and Eukaryotes Show Up in the Proterozoic Eon Ozone Layer and Eukaryotes Show Up in the Proterozoic Eon. Great Oxygenation Event (Oxygen Catastrophe)

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Ozone Layer and Eukaryotes Show Up in the Proterozoic Eon

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