MAKE A MEME View Large Image BrokenConcretion22.jpg en A broken concretion with fossils inside; Late Cretaceous Pierre shale near Ekalaka Montana Own Wilson44691 2008-06 Photograph taken by Mark A Wilson Department of Geology The College of Wooster http //www3 wooster ...
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Keywords: BrokenConcretion22.jpg en A broken concretion with fossils inside; Late Cretaceous Pierre shale near Ekalaka Montana Own Wilson44691 2008-06 Photograph taken by Mark A Wilson Department of Geology The College of Wooster http //www3 wooster edu/geology/MWilson html Concretion Pierre Shale Geological hammers
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