Two 2025 studies showed dinosaur eggs can provide direct dating evidence, with one dating minerals preserved inside fossil eggshells and another analyzing radioactive isotopes preserved within the eggshell itself.
Sources
- The Top Ten Dinosaur Discoveries of 2025, From Preserved Blood ... (smithsonianmag.com)
- https://www.science.org/content/article/scientists-directly-date-dino-eggshells-first-time (science.org)
- https://cen.acs.org/analytical-chemistry/art-&-artifacts/Dating-dino-eggs/103/web/2025/09 (cen.acs.org)
- https://www.nature.com/articles/s43247-025-02895-w (nature.com)
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