THE TIME OF DINOSAURS Triassic Long long ago very different creatures wandered Earth Some had big bodies terrifying teeth or terrific tails They were dinosaurs
Dinosaurs lived on our planet for about 165 million years This part of the past is known as the Mesozoic Era It includes the Triassic Jurassic and Cretaceous periods Jurassic There were different dinos during different periods Cretaceous
THE CRETACEOUS PERIOD 6 Check out how Earth looked during the Cretaceous The Cretaceous period went from 145 to 66 million years ago At this time Earth's continents were changing They started to spread farther apart
Earth was warmer at the beginning of the Cretaceous However it cooled down over this time Flowering plants first showed up as Earth changed
