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Geological Timescale

Eras, periods, epochs

EraPeriods, epochs
Palaeozoic era earliest period (~545Myr ago) Cambrian period
Palaeozoic era second period (~495Myr ago) Ordovician period
Palaeozoic era third period (~443Myr ago) Silurian period
Palaeozoic era fourth period (~417Myr ago) Devonian period
Palaeozoic era fifth period (~354Myr ago) Carboniferous period
Palaeozoic era sixth period (~290Myr ago) Permian period
Mesozoic era first period (~251Myr ago) Triassic period
Mesozoic era second period (~200Myr ago) Jurassic period
Mesozoic era third period (~144Myr ago) Cretaceous period
Cenozoic era first epoch in Tertiary period (~65Myr ago) Paleocene epoch
Cenozoic era second epoch in Tertiary period (~55Myr ago) Eocene epoch
Cenozoic era third epoch in Tertiary period (~34Myr ago) Oligocene epoch
Cenozoic era fourth epoch in Tertiary period (~24Myr ago) Miocene epoch
Cenozoic era fifth epoch in Tertiary period (~5Myr ago) Pliocene epoch
Cenozoic era first epoch in Quaternary period (~1.8Myr ago) Pleistocene epoch
Cenozoic era second epoch in Quaternary period (~0.01Myr ago) Holocene epoch
Created by: jebeard
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