Science Earth Sciences Paleontology By Geological Interval
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The study of paleontology can be broken down in a number of ways. One way to study past life is to examine specific intervals of the earth's past. This category is for any website that deals with the study of these intervals.

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UCMP Web Time Machine
A geologic timescale from the UC Berkeley Museum of Paleontology.
[Book Mozilla]
Last update:
April 10, 2016 at 1:47:06 UTC
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