Dinosaur eggs in China reveal secrets from 85 million years ago
Scientists have directly dated dinosaur eggs using carbonate uranium-lead (U-Pb) dating, instead of surrounding rocks. Published in Frontiers in Earth Science, the study confirms fossils from Qinglongshan, China, are about 85 million years old. Experts stated this 'atomic clock for fossils' offers precise timelines to study dinosaur evolution, climate adaptations, and extinction patterns.