Geologic Time

Here are useful references if you wish to explore more about Earth’s deep past, and a geologic timeline so you can consider each sign of the sea around you within the grand sweep of Earth’s history.

Geologic Time
© Smithsonian Ocean: Our Water Our World

References for Further Exploration
The National Museum of Natural History, Smithsonian, Department of Paleontology, History of Geologic Time
http://paleobiology.si.edu/geotime/main/index.html

University of California Museum of Paleontology Tour of Geologic Time
http://www.ucmp.berkeley.edu/exhibits/geologictime.php

The Paleontology Portal
http://www.paleoportal.org/index.php?globalnav=time_space

Maps of ancient seas overlaid on contemporary landscape from Ron Blakey (Northern Arizona University)
Blakey home page
http://jan.ucc.nau.edu/~rcb7/RCB.html
Map Table of contents
http://jan.ucc.nau.edu/~rcb7/nam.html