School of Anthropology & Department of Geosciences
University of Arizona
Office in Anthropology:
P.O. Box 210030 (U.S. Mail)
1009 E. South Campus Drive (Overnight delivery)
Tucson AZ 85721-0030
I’ll take something positive from what you said. It is fine to be skeptical as long as you leave open the possibility that we are right, which you did.
Haynes showed convincingly that no megafauna fossils exist within or above the black mat. He argues that this was due to a sudden, catastrophic event. It is difficult to know what other contributing events may have occurred during the short period of Clovis occupation before the YD.
Stafford and Waters showed that Clovis-age occupation ended nearly simultaneously in North and South America 12,900 years ago. That says nothing about who or what disappeared. The people may well have survived beyond this point but it is clear that they stopped hunting megafauna then. There is certainly a problem with the lack of data, data selection, and radiocarbon dating methods. Many may not realize that Stafford and Waters used their own radiocarbon calibration methods, not INTCAL which would have given different results. My opinion is that nobody can do radiocarbon dating to better than 100-200 years, 13 kyr ago, due to the many uncertainties in the radiocarbon record for different locations and experimental problems.
“The money Americans spend on bottled water could pay for bringing fresh water to all the people in the world who need it.” Lester Brown, Earth Policy Institute