Geologic Time Line

Dublin Core

Alternative Title

Chart showing geologic times and ages down to epoch.


This chart shows the way geologic time is broken down into smaller spans of time called Eons, Eras, Periods, and Epochs. The top of the chart is current time, labeled as 0 Ma (0 years before present). The bottom of the chart represents the beginning of Earth and is labeled with 4,540 Ma (4, 540,000,000 years before present). Yellow areas highlight time frames in which we find most fossil material in Mississippi.


Date Created

March 28, 2022

Temporal Coverage

All of Earth's History (4.54 billion years)


Creative Commons Attribution Non-Commercial No Derivatives license

Rights Holder

Dunn-Seiler Museum


Time chart large.jpg



Modified from USGS Geologic Time Scale, “Geologic Time Line,” Mississippi State University Libraries, accessed May 30, 2024,

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  1. Time chart large.jpg