CINXE.COM
UCMP Web Time Machine
<html><head><script type="text/javascript" src="https://web-static.archive.org/_static/js/bundle-playback.js?v=7YQSqjSh" charset="utf-8"></script> <script type="text/javascript" src="https://web-static.archive.org/_static/js/wombat.js?v=txqj7nKC" charset="utf-8"></script> <script>window.RufflePlayer=window.RufflePlayer||{};window.RufflePlayer.config={"autoplay":"on","unmuteOverlay":"hidden"};</script> <script type="text/javascript" src="https://web-static.archive.org/_static/js/ruffle/ruffle.js"></script> <script type="text/javascript"> __wm.init("https://web.archive.org/web"); __wm.wombat("http://www.ucmp.berkeley.edu:80/help/timeform.html","20020821175843","https://web.archive.org/","web","https://web-static.archive.org/_static/", "1029952723"); </script> <link rel="stylesheet" type="text/css" href="https://web-static.archive.org/_static/css/banner-styles.css?v=p7PEIJWi" /> <link rel="stylesheet" type="text/css" href="https://web-static.archive.org/_static/css/iconochive.css?v=3PDvdIFv" /> <!-- End Wayback Rewrite JS Include --> <title>UCMP Web Time Machine</title> </head> <script language="JavaScript"><!-- if (document.referrer == "" || document.referrer.indexOf("www.ucmp.berkeley.edu") == -1) { if (self != top) top.location.href = window.location.href; } //--></script> <body bgcolor="#ffffff"> <center> <img src="/web/20020821175843im_/http://www.ucmp.berkeley.edu/help/WebLiftTime.gif" width="557" height="43" alt="Welcome to the UCMP Web Lift for Geologic Time!"> <br><font size="-1">We have a <a href="/web/20020821175843/http://www.ucmp.berkeley.edu/help/timeformold.html">text-only version</a> of this page.</font> <p><table border="0" width="80%"><tr> <td align="right" valign="top"><font size="+1"><strong><a href="/web/20020821175843/http://www.ucmp.berkeley.edu/exhibit/geology.html">Introduction to Geology</a></strong></font></td> <td align="center" valign="top"><font size="+2"><strong> | </strong></font></td> <td align="left" valign="top"><font size="+1"><strong><a href="/web/20020821175843/http://www.ucmp.berkeley.edu/help/navgeology.html">Navigating our Geology Wing</a></strong></font></td> </tr></table> <hr size="3" width="75%"> <font size="-1">(mya = million years ago)</font> <p> <table width="85%" border="1" cellpadding="8" cellspacing="0" bgcolor="#ffffff"> <tr> <td rowspan="3" align="center" valign="top"> <b>Phanerozoic Eon</b> <br>(544 mya to present) </td> <td align="left" valign="top" bgcolor="#ffffcc"> <a href="/web/20020821175843/http://www.ucmp.berkeley.edu/cenozoic/cenozoic.html">Cenozoic Era</a> <br>(65 mya to today)</td> <td align="left" valign="top" bgcolor="#ffffdd"> Quaternary (1.8 mya to today)<br> <font size="-1"> <a href="/web/20020821175843/http://www.ucmp.berkeley.edu/quaternary/hol.html">Holocene</a> (11,000 years to today)<br> <a href="/web/20020821175843/http://www.ucmp.berkeley.edu/quaternary/ple.html">Pleistocene</a> (1.8 mya to 11,000 yrs)<br> </font> Tertiary (65 to 1.8 mya)<br> <font size="-1"> <a href="/web/20020821175843/http://www.ucmp.berkeley.edu/tertiary/pli.html">Pliocene</a> (5 to 1.8 mya)<br> <a href="/web/20020821175843/http://www.ucmp.berkeley.edu/tertiary/mio.html">Miocene</a> (23 to 5 mya)<br> <a href="/web/20020821175843/http://www.ucmp.berkeley.edu/tertiary/oli.html">Oligocene</a> (38 to 23 mya)<br> <a href="/web/20020821175843/http://www.ucmp.berkeley.edu/tertiary/eoc.html">Eocene</a> (54 to 38 mya)<br> <a href="/web/20020821175843/http://www.ucmp.berkeley.edu/tertiary/pal.html">Paleocene</a> (65 to 54 mya)<br> </font> </td> </tr> <tr> <td align="left" valign="top" bgcolor="#ccffcc"> <a href="/web/20020821175843/http://www.ucmp.berkeley.edu/mesozoic/mesozoic.html">Mesozoic Era</a> <br>(245 to 65 mya)</td> <td align="left" valign="top" bgcolor="#ddffdd"> <a href="/web/20020821175843/http://www.ucmp.berkeley.edu/mesozoic/cretaceous/cretaceous.html">Cretaceous</a> (146 to 65 mya)<br> <a href="/web/20020821175843/http://www.ucmp.berkeley.edu/mesozoic/jurassic/jurassintro.html">Jurassic</a> (208 to 146 mya)<br> <a href="/web/20020821175843/http://www.ucmp.berkeley.edu/mesozoic/triassic/triassic.html">Triassic</a> (245 to 208 mya)<br> </tr> <tr> <td align="left" valign="top" bgcolor="#ffcccc"> <a href="/web/20020821175843/http://www.ucmp.berkeley.edu/paleozoic/paleozoic.html">Paleozoic Era</a> <br>(544 to 245 mya)</td> <td align="left" valign="top" bgcolor="#ffdddd"> <a href="/web/20020821175843/http://www.ucmp.berkeley.edu/permian/permian.html">Permian</a> (286 to 245 mya)<br> <a href="/web/20020821175843/http://www.ucmp.berkeley.edu/carboniferous/carboniferous.html">Carboniferous</a> (360 to 286 mya)<br> <font size="-1"> Pennsylvanian (325 to 286 mya) <br> Mississippian (360 to 325 mya) </font><br> <a href="/web/20020821175843/http://www.ucmp.berkeley.edu/devonian/devonian.html">Devonian</a> (410 to 360 mya)<br> <a href="/web/20020821175843/http://www.ucmp.berkeley.edu/silurian/silurian.html">Silurian</a> (440 to 410 mya)<br> <a href="/web/20020821175843/http://www.ucmp.berkeley.edu/ordovician/ordovician.html">Ordovician</a> (505 to 440 mya)<br> <a href="/web/20020821175843/http://www.ucmp.berkeley.edu/cambrian/camb.html">Cambrian</a> (544 to 505 mya)<br> <font size="-1"> <a href="/web/20020821175843/http://www.ucmp.berkeley.edu/cambrian/tommotian.html">Tommotian</a> (530 to 527 mya) </font><br> </td> </tr> <tr> <td rowspan="3" align="center" valign="top"> <a href="/web/20020821175843/http://www.ucmp.berkeley.edu/precambrian/precambrian.html"><b>Precambrian Time</b></a><br> (4,500 to 544 mya) </td> <td align="left" valign="top" bgcolor="#cccccc"> <a href="/web/20020821175843/http://www.ucmp.berkeley.edu/precambrian/proterozoic.html">Proterozoic Era</a> <br>(2500 to 544 mya) </td> <td align="left" valign="bottom" bgcolor="#dddddd"> Neoproterozoic (900 to 544 mya)<br> <font size="-1"> <a href="/web/20020821175843/http://www.ucmp.berkeley.edu/vendian/vendian.html">Vendian</a> (650 to 544 mya) </font><br> Mesoproterozoic (1600 to 900 mya)<br> Paleoproterozoic (2500 to 1600 mya)<br> </td> </tr> <tr bgcolor="#ffccaa"> <td colspan="2" align="left" valign="top"> <a href="/web/20020821175843/http://www.ucmp.berkeley.edu/precambrian/archaean.html">Archaean</a> <br>(3800 to 2500 mya)<br> </td> </tr> <tr> <td colspan="2" align="left" valign="top" bgcolor="#ffaaaa"> <a href="/web/20020821175843/http://www.ucmp.berkeley.edu/precambrian/hadean.html">Hadean</a> <br>(4500 to 3800 mya) </td> </tr> </font></strong> </table> <hr size="3" width="40%"> <a href="/web/20020821175843/http://www.ucmp.berkeley.edu/help/autimeform.html"><img src="/web/20020821175843im_/http://www.ucmp.berkeley.edu/images/authors.gif" width="68" height="23"></a> <a href="/web/20020821175843/http://www.ucmp.berkeley.edu/copyright.html"><img 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