Changhsingian

In the geologic time scale, the Changhsingian or Changxingian is the latest age or uppermost stage of the Permian period and the Paleozoic era as a whole. It is also the upper or latest of two subdivisions of the Lopingian Epoch or Series. The Changhsingian lasted from to 251.902 Ma ago. It is preceded by the Wuchiapingian age/stage and is followed by the Induan age/stage (Early Triassic epoch).

county of China

The Zechstein (German either from mine stone or tough stone) is a unit of sedimentary rock layers of Late Permian (Lopingian) age located in the European Permian Basin which stretches from the east coast of England to northern Poland. The name Zechstein was formerly also used as a unit of time in the geologic timescale, but nowadays it is only used for the corresponding sedimentary deposits in Europe.

geological formation in Brazil