The end of the Paleozoic and beginning of the Mesozoic 251 million years ... As they work through the investigation, the group should come to a consensus about where on the time line they are. Each ...

Prehistoric time line, geologic time scale ... rose in the foundational years of the Precambrian. The productive Paleozoic era gave rise to hard-shelled organisms, vertebrates, amphibians ...

After Keppie (2000). The Appalachian orogen of North America is divisible with some controversy into five tectonolithologic zones which range in age from Late Precambrian through the Early Paleozoic ...

Crucially, the reconstruction has a consistent timeline which enables us to bring together all pieces of the puzzle to demonstrate that the climate of the Late Paleozoic era was closely regulated ...