[21760] North American, Strata: Upper Carboniferous (Pennsylvanian), Period: 26020, Rec 1470

[Rec № 1470] Lithostrtigraphy and depositional environments of the Upper Dornick Hills Group (Lower Pennsylvanian) in the northern part of the Ardmore Basin, Oklahoma

Tennant, S. H.
Masters thesis, University of Oklahoma, 1981, « Missing Vol »