The Cambrian to Quatenary from the oldest to current. It is Cambrian, Ordovician, Silurian, Devonian, Carboniferous, Permian, Triassic, Jurassic, Cretaceous, Tertiary, and Quaternary.
The mneumic is Could Only Sit Down Calmly and Put The Jacket-Coat Thoroughly on Quietly!!
Monday, September 28, 2009
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