The Paleozoic
URL: http://earth.usc.edu/~stott/Catalina/Ordivician.html
Submitted: Sat Sep 06 2003
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CT: Earth Sciences: Paleontology: By Geological Interval: Paleozoic: The Paleozoic
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Description:
An overview of the era from the Ordovician Period to the Permian, with maps and timelines.