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| View Original: | ConcretionPseudofossil.jpg (1752x1252) | |||
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| Keywords: ConcretionPseudofossil.jpg en Cross-section of a concretion showing layers which resemble tree rings Own Wilson44691 2008-08-24 Photograph taken by Mark A Wilson Department of Geology The College of Wooster http //www3 wooster edu/geology/MWilson html Pseudofossils Concretion | ||||
