Researchers collected and vaporized samples from fossilized eggshells in China's Qinglongshan fossil reserve. They calculated how old the eggs were by measuring accumulated lead and uranium atoms in ...
Using uranium-lead dating, researchers calculated the age of the eggs, rather than the sediments around them, at the Qinglongshan site in China ...
Scientists in central China have discovered a clutch of 28 fossilized dinosaur eggs dating back around 86 million years. Found in the Qinglongshan fossil reserve in the Yunyang Basin, the eggs were ...
CHINA — A clutch of 28 dinosaur eggs found in the Qinglongshan fossil reserve in central China is about 86 million years old, according to scientists who used an "atomic clock" method to date the ...