The Paleozoic Era had 6 major periods, the Cambrian, Ordivician, Silurian, Devonian, Carboniferous (often split into the Mississippian and Pennsylvanian), and Permian.  This era is primarily known for its diversification of marine animals. Please write 1 short paragraph on each period.

Whats needed in each paragraph?

1. When did the period occur (years)

2. What kind of life does the fossil record show

3. Are the fossils from the period found universally or in a distinct geographic region

4. What was the climate like during that period

5. make sure to cite all sources used