Figure 13. Average global temperature during the Phanerozoic and part of the Precambrian, with one of the changes from warm to cool during the latter part of the Jurassic (from Scotese, 2000; www.scotese.com)
Figure 13. Average global temperature during the Phanerozoic and part of the Precambrian, with one of the changes from warm to cool during the latter part of the Jurassic (from Scotese, 2000; www.scotese.com)