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Five methods that create fossils.
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Five methods that create fossils.
It is an educational content of CK-12 Foundation (to access some of the CK-12 contents you must be logged in).
The Petrified Forest, Arizona contains fossils of nine extinct tree species and fossils created by other processes.
It is an educational content of CK-12 Foundation (to access some of the CK-12 content ...
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