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New Dating Technique Reveals 85 Million-Year-Old Dinosaur Eggs

9/14/2025

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Summary

Story summary

Scientists in central China dated 28 fossilized dinosaur eggs to approximately 85.91 million years old.
Led by Dr. Bi Zhao, the research used a new "atomic clock" technique for precise dating through uranium and lead analysis.
This method surpasses traditional techniques that depend on volcanic materials.
The eggs, from the species Placoolithus tumiaolingensis, shed light on dinosaur reproduction and climate adaptation.
Future studies will apply this technique to other fossil sites in China to deepen insights into prehistoric life.

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Story summary

Scientists in central China dated 28 fossilized dinosaur eggs to approximately 85.91 million years old.
Led by Dr. Bi Zhao, the research used a new "atomic clock" technique for precise dating through uranium and lead analysis.
This method surpasses traditional techniques that depend on volcanic materials.
The eggs, from the species Placoolithus tumiaolingensis, shed light on dinosaur reproduction and climate adaptation.
Future studies will apply this technique to other fossil sites in China to deepen insights into prehistoric life.