Learn more about a time period marked by an intense burst of evolution. 3 min read The Cambrian period, part of the Paleozoic era, produced the most intense burst of evolution ever known.

A region in China’s Turpan-Hami Basin served as a refugium - or “life oasis”- for terrestrial plants during the end-Permian mass extinction.

visitors can follow fossil evidence tracing the evolution of life during the Cambrian period — the first geological period of the Paleozoic era — which lasted from 541 million to 485 million ...

or "life oasis," for terrestrial plants during the end-Permian mass extinction, the most severe biological crisis since the ...