Phanerozoic Eon: Quick Facts

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A chart detailing the Carboniferous period within the Paleozoic era, showing its division into Mississippian and Pennsylvanian subperiods, with corresponding epochs, ages, and their ranges in millions of years ago.

A chart showing the Cretaceous period of the Mesozoic era on the geologic time scale, listing its division into Upper and Lower epochs, with stages such as Maastrichtian, Campanian, and Berriasian, and corresponding ages in millions of years ago.

A chart detailing the Devonian period of the Paleozoic era, showing its division into Lower, Middle, and Upper series with stages such as Lochkovian, Pragian, Emsian, Eifelian, Givetian, Frasnian, and Famennian, alongside corresponding ages in millions of years ago.

A detailed geologic time scale chart displaying Earth's history from the Hadean Eon over 4.5 billion years ago to the present, organized by eons, eras, periods, epochs, and ages with color-coded columns and corresponding dates in millions of years.

Chart showing the Jurassic period within the Mesozoic era, listing its division into Lower, Middle, and Upper epochs with corresponding ages such as Hettangian, Oxfordian, and Tithonian, along with their approximate millions of years ago.

A geologic time scale chart details the Neogene period of the Cenozoic era, listing its epochs (Miocene and Pliocene) and stages with corresponding ages in millions of years ago, ranging from 23.03 to 2.58 million years ago.

A chart showing the Ordovician period within the Paleozoic era on the geologic time scale, listing its division into Lower, Middle, and Upper epochs, with corresponding stage names and their ages in millions of years ago.

Chart showing the Paleogene period of the Cenozoic era on the geologic time scale, listing its epochs-Oligocene, Eocene, and Paleocene-each divided into stages with corresponding ages in millions of years ago.

A geologic time scale chart showing the Permian period of the Paleozoic era, divided into Cisuralian, Guadalupian, and Lopingian epochs with their corresponding ages and millions of years ago.

A geologic time scale chart showing the Silurian period of the Paleozoic era, listing its epochs and stages with corresponding ages in millions of years ago, from 443.8 to 419.2 million years ago.

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Topics

Mesozoic Era Cenozoic Era Paleozoic Era K–T boundary Tertiary Period Silurian Period Cambrian Period Devonian Period Triassic Period Ordovician Period Precambrian Lipalian interval How Old Is Earth?geochronology A Journey Through Time Since the Precambrian era epoch period eon