The Age of the Dinosaurs By highlandhills00 Feb 25, 1000 Triassic Period 250-200 Million Years Ago Period: Feb 25, 1000 to Feb 25, 2000 Mesozoic Era Feb 25, 1100 Coelophysis' Lived Feb 25, 1200 Plateosaurus' Lived Feb 25, 1500 Jurassic Period 200-145 Million Years Ago Feb 25, 1600 Allosaurus' Lived Feb 25, 1700 Stegosaurus' Lived Feb 25, 2013 Cretaceous Period 145-65 Million Years Ago Feb 25, 2013 Triceratops' Lived Feb 28, 2013 Tyrannosaurus' Lived
