J. C. Harksen

• Miocene Batesland Formation named in southwestern South Dakota
• Miocene channels in the Cedar Pass area, Jackson County, South Dakota
• New Miocene formation in South Dakota
• Radiocarbon dating of terraces along Bear Creek, Pennington County, South Dakota
• Red Dog loess named in southwestern South Dakota
• Thin Elk Formation, Lower Pliocene, South Dakota
• Type sections for the Chadron & Brule Formations of the White River Oligocene in the Big Badlands, South Dakota