The Red Eagle Formation in Kansas / Orthography as a Factor in Stability of Stratigraphical Nomenclature

Abstract

Discovery that members of the Red Eagle formation (Lower Permian) have been defined and correlated inconsistently between southern Nebraska and northern Oklahoma indicates need for restudy of these strata. Determination of criteria for recognition of member boundaries usable throughout the area of outcrop is required. It is shown that the Red Eagle beds include faunal and lithologic zones that can be traced entirely across Kansas and adjacent parts of Nebraska and Oklahoma, and these serve to guide identification of stratigraphic units without modifying definitions of this formation and its members.