Original published in D.F. Merriam, ed., 1964, Symposium on cyclic sedimentation: Kansas Geological Survey, Bulletin 169, pp. 533-539

Figure 1--Diagrammatic representation of uninterrupted complete "normal" sedimentary cycle in late Pennsylvanian and early Permian of western and central Texas. Shapes are distorted by thousand-fold vertical exaggeration of sediment body between surfaces A and E.