Mass extinction

Biomass extinction: There have been five mass extinction events in the history of the earth, namely, the end of the Ordovician, the end of the Devonian, the end of the Permian, the end of the Triassic and the end of the Cretaceous.Xingyi geopark has passed two biomass extinction events ：the end of the Permian, the end of the Triassic. Xingyi Fauna is the ecosystem recovery of the Permian biomass extinction.



Five mass extinction events in the history of the earth