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The Big Bang started existance of the solar system.
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The forming of earth created a meteorite bombartdment.
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Able to transfer genetic information between different bacteria types.
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Bacteria uses photosynthesis, like plants, to survive by converting energy radiated from the sun. Photosynthesizing Bacteria grows larger and reproduces faster than their competitors.
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Stromatolites are the oldest fossils found in the coastal waters of northwest Australia and South Africa.
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Oxygen appers in the environment, causing damage to living tissues.
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Single celled algea
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First of 4 global ice ages. Cold loving microbes evolve and thrives, but causes future extinction of other organisms.
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Protective ozone layers are in place.
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Green algea probably washed ashore by tides. The green algea was the first creatures other than bacteria to successfully adapt to life on land. The fish are bottom-feeders, covered almost entirely in armor plates.
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Oxygen nears present day levels.
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First smaller reptilian vertabrea appear.
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The mother of all extinctions.
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The first mammals were related to reptiles. Crocodiles evolved as terrestrial predators. Dinosaurs emerge following a mid-period extinction that probably wipes out most of the mammal-like reptiles.
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Supercontinent Pangea starts to break apart. For the next 160 years the continents reposition themselves to where they are today.
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About 60-80 percent of all species go extinct.
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Primates appear and probably lived in trees and tropical areas.
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Human like primates appear in eastern Africa.
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Modern humans disperse throughout Africa, the Middle East and Europe.
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Nearly all birds and mammals over 45 pounds go extinct.
