The Permian is a geologic period and stratigraphic system which spans 47 million years from the end of the Carboniferous Period 298.9 million years ago, to the beginning of the Triassic Period 251.902 Mya. From Wikipedia
A region in the Turpan-Hami Basin provided refuge for plants and animals during the end-Permian extinction, enabling rapid recovery of ecosystems.
