Mesozoic Era: Age of the Dinosaurs Mesozoic Era: Age of the Dinosaurs.The period, which spans from about 252 million years ago to about 66 million years ago, was also known as the age of reptiles or the age of dinosaurs. livescience.com/38596-mesozoic-era.html...
Mesozoic Era Read about the Mesozoic Era. cotf.edu/ete/modules/msese/earthsysflr/...
The Mesozoic Era The Mesozoic Era is divided into three time periods: the Triassic (251-199.6 million years ago), the Jurassic (199.6-145.5 million years ago), and the Cretaceous (145.5-65.5 million years ago). ucmp.berkeley.edu/mesozoic/mesozoic.php...