yes it's a "rough" estimate based on carbon in bones and compared to today's levels. There's no actually way to tell how old they are.
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yes it's a "rough" estimate based on carbon in bones and compared to today's levels. There's no actually way to tell how old they are.
Radio carbon dating only good up to 50,000 years. Potassium argon dating is used for extended ages. Most dating methods are guess work anyway.