Climate during the Paleozoic Era

• The Early Paleozoic climatewas also strongly zonal.
• The Early Paleozoic ended, rather abruptly, with the short, but apparently severe, Late Ordovician Ice Age.
• The Middle Paleozoic was a time of considerable stability.
• Baltica (Northern Europe and Russia) and Laurentia (eastern North America and Greenland) remained in the tropical zone.