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Hueyatlaco is an archeological site in the Valsequillo Basin near the city of Puebla, Mexico. After excavations in the 1960s, the site became notorious due to geochronologists' analyses that indicated human habitation at Hueyatlaco was dated to ca. 250,000 years before the present.〔(Irwin-Williams, C., et al., Comments on the Associations of Archaeological Materials and Extinct Fauna in the Valsequillo Region Puebla Mexico, American Antiquity, Volume 34, Number 1, Pages 82-83, Jan 1969 )〕〔(Szabo, B.J., Malde, H.E., and Irwin-Williams, C., Dilemma Posed By Uranium-Series Dates On Archaeologically Significant Bones From Valsequillo Puebla Mexico, Earth and Planetary Science Letters, Volume 6, Pages 237-244, Jul 1969 )〕 These controversial findings are orders of magnitude older than the scientific consensus for habitation of the New World (which generally traces widespread human migration to the New World to 13,000 to 16,000 ybp). The findings at Hueyatlaco have mostly been repudiated by the larger scientific community, and have seen only occasional discussion in the literature.〔(Gonzalez, Silvia; Huddart, David; and Bennett Matthew. (2006) Valsequillo Pleistocene archaeology and dating : ongoing controversy in Central Mexico ). ''World Archaeology'', 2006, vol. 38, no4, pp. 611-627.〕 ==Overview of excavation== Cynthia Irwin-Williams led the team that first excavated the site in 1962〔 (Irwin-Williams, C., et al., Comments on the Associations of Archaeological Materials and Extinct Fauna in the Valsequillo Region Puebla Mexico, American Antiquity, Volume 34, Number 1, Pages 82-83, Jan 1969 )〕 The dig is often associated with Virginia Steen-McIntyre because of her continuing efforts to publicize her findings and opinions. However, the site was actually discovered by Juan Armenta Camacho and Irwin-Williams. Steen-McIntyre joined the team in 1966 as a graduate student, at the request of project geologist Hal Malde. The excavation was associated with the U.S. Geological Survey. The region, about 75 miles SE of Mexico City, was known for its abundance of animal fossils, and Irwin-Williams described Hueyatlaco as a "kill site" where animals were hunted and butchered.〔Irwin-Williams, Cynthia. (1978) Summary of Archeological Evidence from the Valsequillo Region, Puebla, Mexico. In ''Cultural Continuity in Mesoamerica'', David L. Browman, ed. The Hague: Mouton Publishers.〕 Excavations were conducted via standard protocols, including securing the sites to prevent trespass or accidental disturbances.〔Webb, Mark Owen and Suzanne Clark. (1999). "(Anatomy of an Anomaly )." Disputatio, 6.〕 During excavation, investigators discovered numerous stone tools. The tools ranged from relatively primitive implements at a smaller associated site, to more sophisticated items such as scrapers and double-edged blades uncovered at the main excavation site. The diversity of tools made from non-local materials suggested that the region had been used by multiple groups over a considerable period. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Hueyatlaco」の詳細全文を読む スポンサード リンク
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