Sahelanthropus tchadensis | Afarensis: Anthropology, Evolution, and Science

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Toumai in the News

Posted on September 2, 2008 by Timothy McDougald

Sahelanthropus tchadensis has been the object of some controversy for quite awhile. Its discoverer, Michel Brunet, considers it to be close to the human-chimp split on the hominin side. While critics think it is on the hominoid side of things. I bring this up because of a recent article (press release?) on PhysOrg that questions the dating of Toumai that was published in PNAS (See my post on the subject). As Hawks points out this is a pretty abysmal article (mistakenly calling cosmogenic nuclide dating carbon dating for example).

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Filed under: Australopithecus, Australopithecus bahrelghazali, Hominini, incertae sedis, Paleoanthropology | Tagged: Australopithecus bahrelghazali, Sahelanthropus tchadensis | 2 Comments »

New Date on Sahelanthropus tchadensis and Australopithecus bahrelghazali

Posted on February 29, 2008 by Timothy McDougald

A new article in PNAS discusses the use of a new dating technique that has been used to come up with a new date for Sahelanthropus tchadensis and a specimen of Australopithecus bahrelghazali. The new method dates Sahelanthropus tchadensis to around 6.8-7.2 MYA, while the Australopithecus bahrelghazali specimen is dated to around 3.58 MYA.

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Filed under: Australopithecus, Australopithecus bahrelghazali, incertae sedis, Paleoanthropology, Sahelanthropus tchadensis | Tagged: Australopithecus bahrelghazali, Sahelanthropus tchadensis | 5 Comments »