[21755] North American, Strata: Upper Carboniferous (Pennsylvanian), Period: 26021, Rec 1508

[Rec № 1508] Petrology of Grindstone Creek and Garner Formations, lower Pennsylvanian, Erath and Eastland Counties, Texas

Rogers, L.T
Masters thesis, University of Texas, Austin, 1960, « Missing Vol »