A collection of dinosaur teeth hailing back to the Cretaceous and Jurassic periods has given scientists a new window into the world’s prehistoric climate.
By studying an isotope of oxygen in the fossils to infer atmospheric carbon dioxide…
A collection of dinosaur teeth hailing back to the Cretaceous and Jurassic periods has given scientists a new window into the world’s prehistoric climate.
By studying an isotope of oxygen in the fossils to infer atmospheric carbon dioxide…