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  • |category7=Sandstone |tree3=Spar Mountain Sandstone Member
    3 KB (435 words) - 14:58, 22 October 2019
  • |category7=Aux Vases Sandstone |category8=Sandstone
    4 KB (606 words) - 21:35, 21 October 2019
  • rect 156 593 265 611 [[Aux Vases Sandstone|Aux Vases Sandstone]] rect 156 524 266 539 [[Yankeetown Sandstone|Yankeetown Sandstone]]
    7 KB (654 words) - 14:48, 30 March 2020
  • ...ndbook of Illinois Stratigraphy: Illinois State Geological Survey Bulletin 95, 261 p. ...downward steps to the west as the upper limestone beds grade westward into sandstone.
    5 KB (728 words) - 15:19, 22 October 2019
  • |category7=Aux Vases Sandstone |category8=Sandstone
    3 KB (412 words) - 15:38, 18 January 2017
  • ...ndbook of Illinois Stratigraphy: Illinois State Geological Survey Bulletin 95, 261 p. ...egagroup, except for minor erosional channels at the base of the Aux Vases Sandstone. It is separated from the overlying Pennsylvanian System by a major unconfo
    3 KB (446 words) - 16:00, 13 January 2017
  • |tree3=Fredonia Limestone Member ...ndbook of Illinois Stratigraphy: Illinois State Geological Survey Bulletin 95, 261 p.
    3 KB (359 words) - 15:09, 22 October 2019