Slide 1 Earth History The Paleozoic Era Slide 2 Paleozoic Time (544 - 245 Million Years Ago) n Bracketed by the two most important biological events in Earth’s history:…
Harry Williams, Historical Geology * PENNSYLVANIAN - PERMIAN. 1. Paleogeography The Pennsylvanian opened with the Kaskaskia Regression, which left a widespread erosional…