Timeline of earth By smithdes1 Period: 4500 BCE to 4000 BCE Hadean Era Period: 4000 BCE to 2500 BCE Archaen Era Period: 2500 BCE to 541 BCE Proterozoic Era Period: 542 BCE to 488 BCE Cambrian Period Period: 541 BCE to 252 BCE Paleozoic Era Period: 488 BCE to 444 BCE Ordovician Period Period: 444 BCE to 416 BCE Silurian Period Period: 416 BCE to 359 BCE Devonian Period Period: 359 BCE to 299 BCE Carboniferous Period Period: 299 BCE to 251 BCE Permian Period 298 MYA ended with a mass extinction 251 MYA Period: 251 BCE to 200 BCE Triassic Period Period: 245 BCE to 66 BCE Mesozoic Era Period: 200 BCE to 146 BCE Jurassic Period Period: 146 BCE to 65 BCE Cretaceous Period 145 MYA ended with a mass extinction 65 MYA Period: 66 BCE to 1 BCE Cenozoic Era Period: 66 BCE to 2 BCE Tertiary Period Period: 2 BCE to 1 BCE Quaternary Period
