299- 251 Million Years Ago
The Permian period lasted from 299 to 251 million years ago and was the last period of the Paleozoic Era. The distinction between the Paleozoic and the Mesozoic is made at the end of the Permian in recognition of the largest mass extinction recorded in the history of life on Earth.
CHASING HISTORY: PERMIAN ERA
CHASING HISTORY: PERMIAN MICRO-FOSSILS