Prehistory Earth cools Herbivores Die Carnivores Die Velociraptor Tyrannosaurus Prehistoric Tree Time Periods Spinosaurus Sinosauropteryx Saltasaurus Plateosaurus Muttaburrasaurus Megalosaurus Kentrosaurus Isanosaurus Fossilization Evolution of Whale Euoplocephalus Eoraptor Cryolophosaurus Evolution Prehistoric Plants