Guadalupian

The Guadalupian is a geological period that occurred roughly 272 to 259 million years ago during the late part of the Permian Era. It is characterized by significant changes in Earth's climate and ecosystems, including the diversification of marine life like mollusks and the development of coral reefs. This period is marked by the expansion of certain terrestrial plants and the evolution of early reptiles. The Guadalupian is important for understanding Earth's history because it preceded the largest mass extinction event at the end of the Permian, which drastically reshaped life on the planet.