Fossils of more than 20 dinosaur eggs were discovered at a middle school construction site in Dayu County in the southeast Chinese province of Jiangxi on 25 December.
The construction team found the oval-shaped stones while preparing to break up boulders after blasting work, China News Service reports.
According to experts from the local conservation museum, the fossils belong to the same batch of eggs and the two-millimetre-thick black fragments are shells.
Dating back to the Cretaceous period (145-66 million years ago), experts estimate that these eggs are 130 million years old. They add that Dayu County was once moors and lakes which were fit for reptiles like dinosaurs to live and breed.
Researches show that as of 2016, more than 20 distinctive kinds of dinosaur eggs have been unearthed in Jiangxi. It means that the province was once home to at least 20 dinosaur species in the late Cretaceous period.
© GB Times