[Campbell Biologie Page 532] Campbell Biology 12th Edition
see Figure 25.16 . Roughly 200 million years ago, Pangaea began to break apart; by 20 million years ago, the continents were within a few hundred kilometers of
see Figure 25.16 . Roughly 200 million years ago, Pangaea began to break apart; by 20 million years ago, the continents were within a few hundred kilometers of