"However it does make me curious to know what the differences are, how different the rocks are in different locations, how different the fossils, if anybody would like to sketch that out." (Faith)
Detailed geological maps of most regions in Europe and North America can be found on the internet, and a search for fossil-bearing formations would also prove to be productive.
(Over the course of the last 200 years or so, a vast amount of knowledge has accumulated regarding both topics. Seek and ye shall find).
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