3 min read The Carboniferous period, part of the late Paleozoic era, takes its name from large ... agile, lizard-like animals. Africa collided with eastern North America in the late Pennsylvanian ...

3 min read During the Ordovician period, part of the Paleozoic era, a rich variety of marine ... remained confined to the seas with new animals evolving in place of those that didn't survive ...

revealed a significant rise in marine oxygenation during the Late Paleozoic era (400 million years ago), hundreds of millions of years after the emergence of animal-life. These findings suggest ...