تجزیه و تحلیل جدید طلوع دایناسورها و دیگر خزندگان را بازسازی می کند

New analysis reconstructs the dawn of dinosaurs and other reptiles

About 252 million years ago, at the end of the Permian Period, a large proportion of species on Earth rapidly became extinct. After this mass extinction, many groups of organisms began to recover, while reptiles known as archosauromorphs—the group that includes dinosaurs and crocodiles—proliferated.