Picture from Flickr Palaeos: Time: Geological Timescale An introduction to Deep Time, the Geological Timescale and dating the Earth's p...
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Showing posts sorted by relevance for query Pennsylvanian (geology) - Wikipedia, the free encyclopedia. Sort by date Show all posts
Showing posts sorted by relevance for query Pennsylvanian (geology) - Wikipedia, the free encyclopedia. Sort by date Show all posts
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