Author R. Feranec E.A. Hadly J.L. Blois A.D. Barnosky A. Paytan Feranec, R., Hadly, E.A., Blois, J.L., Barnosky, A.D., Paytan, A., 2007. Radiocarbon Dates from the Pleistocene Fossil Deposits of Samwell Cave, Shasta County, California, USA. Radiocarbon 49, 117-121.
