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It has become clear that there have been major problems with dating reliability and accuracy across the Paleolithic in general, with studies highlighting issues with underestimation of the ages of different dated samples from previously analyzed sites (6). At Mezmaiskaya, the AMS dates obtained for the Neanderthal excavated above the previously dated individual were substantially older (9). In both cases, revised radiocarbon dates produced with more robust chemical pretreatment methods have illustrated significant underestimates in the previous dates that cannot be reconciled with a hypothesis of late-surviving refugial Neanderthals. However, for Vi-207, the 30-k Da fraction obtained produced a C/N ratio of 4.3, which indicates the presence of a high molecular weight contaminant.We have been working on redating some of the purported late-surviving Neanderthal sites from around Europe, which have included human and archaeological remains from sites such as Mezmaiskaya (Russia), where a previous directly dated Neanderthal infant yielded a radiocarbon age of ∼29,000 B. (7), and Zafarraya (Spain), which was thought to contain Neanderthal remains clustering in age around a small group of U-series–dated animal bones between 33,400 and 28,900 B. This, along with other AMS dates from cut-marked fauna from the same archaeological horizons, suggested the original date of 29,000 B. The Neanderthal fossil remains from level G of Vindija Cave in northern Croatia have remained in the literature as potentially late individuals. (14) attempted to redate these specimens by taking the very small amounts of collagen remaining from the original sample pretreatment and ultrafiltering the product before AMS dating. The radiocarbon date for this sample could therefore include a higher molecular weight noncollagenous contaminant, possibly cross-linked to the collagen.He said that he had thought through the professional ramifications, and they were worth it for him. And even though he would never be in a position to promote me, he is very much a boss. Chief among them: Your disparate levels of power at work will inevitably seep into your off-duty relationship. He may not have the power to promote you, but he probably eats lunch with those who do.That he felt entitled to put you in the awkward position where you now sit, absent encouragement from you, is proof enough of that. Are you willing to have jealous colleagues ascribe your well-earned achievements to sexual prowess?The ashtray she bought is shiny, red and highly inviting to our toddler. Now we have two problems: an ashtray outside the back door, and our child’s interest in it. So long as she empties it regularly, keep quiet in (seething) neighborly fashion.

We use cookies to offer you a better experience, personalize content, tailor advertising, provide social media features, and better understand the use of our services.Given the evidence from the Peștera cu Oase specimen, which demonstrates a recent Neanderthal ancestry in a 40,000 cal B. modern human from the Danube corridor (5), the renewed dating of the Vindija remains is overdue. On the basis of the potential problems associated with the small size of the redated samples and the potential for remaining contaminants, Ox A-X-2089-06 was considered to be a minimum age (14).Two specimens, Vi-207 and Vi-208, were originally directly AMS dated in the late 1990s at the Oxford Radiocarbon Accelerator Unit (ORAU). If the dates are even approximately correct, however, it makes them the most recent known Neanderthals.We use cookies to make interactions with our website easy and meaningful, to better understand the use of our services, and to tailor advertising.For further information, including about cookie settings, please read our Cookie Policy .

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