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How old are the oldest-known fossils?
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The oldest-known fossils are of tiny bacteria-like creatures that lived over 3,000 million years ago. They are so small that to see them you have to use a microscope to look at the rock they are in. | | A concentration of favosite fossils |
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Previous:
Back
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Book:
1001
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Section:
Nature
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Chapter:
Fossils and Prehistoric Life
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