A diagram of the geological time scale
<ul><li><a href="//commons.wikimedia.org/w/index.php?title=United_States_Geological_Survey&amp;action=edit&amp;redlink=1" class="new" title="United States Geological Survey (page does not exist)">United States Geological Survey</a></li>
<li>Derivative work <a href="//commons.wikimedia.org/wiki/User:MagentaGreen" title="User:MagentaGreen">MagentaGreen</a> as suggested by <a href="//commons.wikimedia.org/wiki/User:Markov" title="User:Markov">Markov</a></li></ul>
September 2008 (Version 1.1)
This file was derived from: <a href="//commons.wikimedia.org/wiki/File:Geological_time_spiral.png" title="File:Geological time spiral.png">Geological time spiral.png</a>: <a href="//commons.wikimedia.org/wiki/File:Geological_time_spiral.png" class="image"><img alt="Geological time spiral.png" src="https://upload.wikimedia.org/wikipedia/commons/thumb/7/79/Geological_time_spiral.png/50px-Geological_time_spiral.png" decoding="async" width="50" height="44" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/7/79/Geological_time_spiral.png/75px-Geological_time_spiral.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/7/79/Geological_time_spiral.png/100px-Geological_time_spiral.png 2x" data-file-width="2424" data-file-height="2145"></a><br>