【新华社】约8600万年前的恐龙蛋有了“出生证明”

Group 1 - The dinosaur egg fossils in the Qinba Mountains of Hubei, China, have been dated to approximately 86 million years ago, marking a significant discovery in paleontology [2] - The research team successfully applied carbonate dating techniques to determine the age of the egg fossils, revealing that the formation of the eggs occurred during a global cooling period [2][3] - The study was published in the authoritative journal "Frontiers in Earth Science," providing a "birth certificate" for the dinosaur egg fossils [2] Group 2 - The research indicates that the dinosaur egg-laying event in the Qinglongshan area coincided with notable global climate changes, transitioning from a typical greenhouse climate to a cooler period [2] - Although the study has not yet covered all layers of the buried dinosaur egg fossils, it opens new avenues for understanding the evolution of dinosaur eggs and the timeline of their development [3] - This research provides a new theoretical tool for exploring significant scientific questions related to ancient climate changes, dinosaur evolution, and extinction mysteries [3]