关于《北美俄勒冈州克洛维斯人之前的人类粪便化石中的DNA》的评论
Comment on "DNA from pre-Clovis human coprolites in Oregon, North America".
作者信息
Poinar Hendrik, Fiedel Stuart, King Christine E, Devault Alison M, Bos Kirsti, Kuch Melanie, Debruyne Regis
机构信息
McMaster Ancient DNA Centre, Department of Anthropology, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4L9 Canada.
出版信息
Science. 2009 Jul 10;325(5937):148; author reply 148. doi: 10.1126/science.1168182.
Gilbert et al. (Reports, 9 May 2008, p. 786) analyzed DNA from radiocarbon-dated paleofecal remains from Paisley Cave, Oregon, which ostensibly demonstrate a human presence in North America predating the well-established Clovis complex. We question the authenticity of their DNA results and argue that in the absence of intact stratigraphy and diagnostic artifacts, and in view of carbon isotope anomalies, the radiocarbon dates of the oldest specimens are unreliable.
吉尔伯特等人（《报告》，2008年5月9日，第786页）分析了来自俄勒冈州佩斯利洞穴中经放射性碳年代测定的古粪便残骸的DNA，这些残骸表面上证明了在北美存在早于已被充分证实的克洛维斯文化复合体的人类。我们对他们DNA结果的真实性表示质疑，并认为在缺乏完整地层学和诊断性文物的情况下，鉴于碳同位素异常，最古老标本的放射性碳年代测定结果不可靠。
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