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Shale-siltstone-sandstone (Logan Formation, Lower Mississippian; Jackson North roadcut, Ohio, USA) 3 (37258076820).jpg - Ser Amantio di Nicolao
Shale-siltstone-sandstone (Logan Formation, Lower Mississippian; Jackson North roadcut, Ohio, USA) 2 (36806320014).jpg - Ser Amantio di Nicolao
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