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What is Overview of Geologic Time Periods about?

The document outlines the geologic timescale from 4600 million years ago to present day. It is divided into eons, eras, periods, and epochs with dates listed in millions of years ago. The major divisions are the Precambrian, Paleozoic, Mesozoic, and Cenozoic eras. Finer subdivisions include the Paleogene and Neogene periods within the Cenozoic era. The classification system varies slightly between countries.

Author

gheorghe3

Language

EN