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- |category6=Shale |tree2=Canton Shale Member10 KB (1,407 words) - 16:16, 9 February 2022
- |category6=Shale |tree2=Big Creek Shale Member7 KB (1,017 words) - 16:15, 9 February 2022
- |tree3=Hermon Coal Member ...ndbook of Illinois Stratigraphy: Illinois State Geological Survey Bulletin 95, 261 p.3 KB (368 words) - 21:21, 3 February 2017
- {{DISPLAYTITLE:Wiley Coal Member (abandoned)}} |tree2=Wiley Coal Member5 KB (713 words) - 16:31, 9 February 2022
- |tree2=Vermilionville Sandstone Member ...22, Pennsylvanian Subsystem in Illinois: Illinois State Geological Survey, Bulletin (in press).12 KB (1,630 words) - 16:15, 9 February 2022