Comment on "Redefining the age of Clovis: implications for the peopling of the Americas".
نویسندگان
چکیده
Waters and Stafford (Reports, 23 February 2007, p. 1122) provided useful information about the age of some Clovis sites but have not definitively established the temporal span of this cultural complex in the Americas. Only a continuing program of radiometric dating and careful stratigraphic correlations can address the lingering ambiguity about the emergence and spread of Clovis culture.
منابع مشابه
Redefining the age of Clovis: implications for the peopling of the Americas.
The Clovis complex is considered to be the oldest unequivocal evidence of humans in the Americas, dating between 11,500 and 10,900 radiocarbon years before the present (14C yr B.P.). Adjusted 14C dates and a reevaluation of the existing Clovis date record revise the Clovis time range to 11,050 to 10,800 14C yr B.P. In as few as 200 calendar years, Clovis technology originated and spread through...
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ورودعنوان ژورنال:
- Science
دوره 317 5836 شماره
صفحات -
تاریخ انتشار 2007