Schuler Formation  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Mesozoic
 ...Jurassic
 ....Upper Jurassic
 .....Schuler Formation
RTLouisiana
 Texas
 Arkansas
 Cotton Valley Group
SNIn Cotton Valley Group. Includes Morgan Sands Zone, Jones Sand, Dorcheat and Shongaloo members. Subsurface.