Several changes in stratigraphic nomenclature have been approved by director Frank C. Foley for use by the Kansas Geological Survey.
According to the 1961 Code of Stratigraphic Nomenclature, new or redefined time-stratigrapic and rock-stratigraphic names must be published in a recognized scientific medium. The changes in Kansas nomenclature are here described.
The three-fold series terms Lower, Middle, and Upper Permian, as currently used in Kansas, are replaced with a two-fold classification, Lower and
Upper Permian (Fig. 1). The lower boundary of the Lower Permian is not changed and remains at the base of the Onaga Shale. The upper...
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