Geological Time Periods: Fossils and Discoveries

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What are fossils and how are they formed?
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Fossils are the preserved remains or traces of ancient organisms, formed through processes like permineralization or being trapped in amber.
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How do fossils contribute to understanding geological time periods?
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Fossils help scientists date rocks and understand the evolution and extinction of life over geological time periods.
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What is a 'living fossil' and can you give an example?
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A living fossil is a species that has remained unchanged over large geological time scales; an example is the coelacanth fish.
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What significant discovery is associated with the Cenozoic Era?
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The discovery of early human fossils, such as those of Australopithecus, is significant to the Cenozoic Era.
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How can carbon dating be used in paleontology?
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Carbon dating measures the decay of carbon-14 to estimate the age of organic materials found in fossils.
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