Claim: Technological advances with  Accelerator mass spectrometry allowed samples from Duck Decoys found at Lovelock Cave, a North American archaeological site previously known as Sunset Guano Cave, to be dated at 130 and 300 BC.
Evidence: Lovelock Cave (NV-Ch-18) is a North American archaeological site previously known as Sunset Guano Cave, Horseshoe Cave, and Loud Site 18. Duck Decoy 13/4513, Lovelock Cave was dated at 2,080 +/- 330 BP (c. 130 BC), and Duck Decoy 13/4512B was dated at 2,250 +/- 230BP (c. 300 BC). Technological advances with AMS dating meant that much smaller, milligram-size, specimens from archaeological record were ample size for dating. Later samples could not be acquired without causing extensive damage to the decoys so they were not dated until the development of the Accelerator mass spectrometry (AMS) dating technique. Samples were retrieved from two duck decoys and A. J. T. Tull of the University of Arizona, Tucson conducted the dating of the specimens.