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Fish fossils and dinosaur skulls cannot be dated using carbon-14 (C-14) because they are typically millions of years old, far exceeding the C-14 dating range of up to about 50,000 years. Additionally, uranium-238 (U-238) dating is generally used for much older geological formations and requires specific conditions that may not be present in all fossil contexts. These fossils often lack the necessary materials or context for accurate U-238 dating, making radiometric methods unsuitable. Instead, other dating techniques, such as relative dating or stratigraphy, are often employed for these ancient specimens.

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2mo ago

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The oldest fossil that has been dated is approximately 3.5 billion years old.


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