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How Many Geological Periods Are There? [Solved]

A period is a major rank below an era and above an epoch. It is the geochronologic equivalent of a chronostratigraphic system. As of April 2022 there are currently 22 defined periods/systems.

A Brief History of Geologic Time

By looking at the layers beneath our feet,

Phanerozoic Eon | Geologic Time Scale with events |

The Phanerozoic Eon is part of the

Learn Order of geological time periods in JUST 2 Mins

The order of