Documents The Geology of the Paleozoic Era 7% of Earth’s history Permian Pennsylvanian Mississippian...

The Geology of the Paleozoic Era 7% of Earthâs history Permian Pennsylvanian Mississippian Devonian Silurian Ordovician Cambrian Boundaries are changes in the fossil record…

Documents The Geology of the Paleozoic Era

The Geology of the Paleozoic Era 7% of Earthâs history Permian Pennsylvanian Mississippian Devonian Silurian Ordovician Cambrian Boundaries are changes in the fossil record…