I want to know the answer to the following question:
The Permian is an example of what?
All the background I'm provided with is that "The Paleozoic spanned from roughly 541 to 252 million years ago (Ma) and is subdivided into six geologic periods; from oldest to youngest they are the Cambrian, Ordovician, Silurian, Devonian, Carboniferous and Permian.". Is that enough to answer the question?