From editor or global species database
Type locality USGS locality 12683, Kettleman Hills, east side of Middle Dome, 2000 feet east and 2000 feet south from NW. corr. sec. 17, T. 23 S., R. 19 E. Kings County (Pilsbry 1935: 547), California, United States; Tulare Formation, Pleistocene [details]