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Story summary
- An international team developed a method to date fossil-containing rocks by analyzing dinosaur eggshells.
- Dr. Ryan Tucker of Stellenbosch University led the work, published in Communications Earth & Environment.
- The method uses uranium-lead dating to determine when the eggs were buried in sediment.
- Tests on eggs from Utah and Mongolia showed accuracy within five percent of volcanic-ash dates.
- The approach offers a global tool for dating sites lacking volcanic layers.
