Paleozoic Geologic Stage Correlation Chart

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I was looking for a single source that listed out the North American equivalents to the International geologic stages and couldn’t find one. So, I spent most of the day creating one. Correlation Chart Paleozoic Time Ma,Period,Epoch,Global Stage,North America Stage,Time Ma Triassic 250,Permian,Lopingian,Changhsingian,250 Wuchiapingian 255,255 Ochoan 260,260 Guadalupian,Capitanian,Capitanian 265,265 Wordian,Wordian Roadian,Roadian 270,270 Cisuralian,Kungurian,Cathedralian Hessian 275,275 […]