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- |category7=Sandstone |tree3=Babylon Sandstone Member3 KB (328 words) - 22:08, 27 January 2017
- |tree3=Manley Coal Member ...ndbook of Illinois Stratigraphy: Illinois State Geological Survey Bulletin 95, 261 p.2 KB (325 words) - 22:04, 27 January 2017
- |category7=Sandstone |tree3=Grindstaff Sandstone Member3 KB (350 words) - 22:00, 27 January 2017