zach and alex timeline By manoftaco1 May 8, 1111 mesozoic era commences 206 mya May 8, 1112 begining of Triassic period 206mya May 8, 1113 life form begin 206mya May 8, 1114 climate changes 206mya May 8, 1115 plant life forms 206mya May 8, 1116 life form evolve 206mya May 8, 1117 moutains develop 206mya May 8, 1118 reptiles develop 206mya May 8, 1119 dinosaurs 206mya May 8, 1120 mammals 206mya May 9, 1121 jurassic period ends 606mya May 9, 1122 Cenazoic, Age of Mammals