from 310 million to 280 million years ago; warm climate; swampy land
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a native or resident of Pennsylvania
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The company said perforations in the Pennsylvanian Spiro sandstone were between 12,142 and 12,170 feet.
As a Pennsylvanian born and bred, I was amused that Shelia Rupp of Kern's Kitchen Inc. resents the fact that the official Kentucky Derby Festival pastry is a Pennsylvania product.