Pterosaurs ruled the skies at the time of the dinosaurs. Now a cache of them has been found in China.
“The extraordinary thing about those embryos is they have a set of bones that in many respects match those of adults in terms of proportions. When they come out of the egg, they are like mini-adults,” says David Unwin at the University of Leicester in the UK.
He and his colleague, Denis Charles Deeming at the University of Lincoln in the UK, analysed the size and shape of 37 eggs from a collection of 300 found at a site in Jinzhou, China. They found that as the eggs developed, they changed shape from long and slender to relatively round.
He and his colleague, Denis Charles Deeming at the University of Lincoln in the UK, analysed the size and shape of 37 eggs from a collection of 300 found at a site in Jinzhou, China. They found that as the eggs developed, they changed shape from long and slender to relatively round."