1/18/2024 0 Comments Radiometric dating factsIndex fossils are fossils that are known to only occur within a very specific age range. Scientists can use certain types of fossils referred to as index fossils to assist in relative dating via correlation. But, how can we determine how old a rock formation is, if it hasn’t previously been dated? The Wheeler Formation has been previously dated to approximately 507 million year old, so we know the trilobite is also about 507 million years old. For example if you have a fossil trilobite and it was found in the Wheeler Formation.
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