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Approximate age:1,765,000 years old=average of minimum (1.72 Ma) and maximum (1.81 Ma)
Date based on: Linear extrapolation (visual projection) from nearby KBS and Kalochoro tuffs See map of sites with similar ages
Dating reference: 2011. An earlier origin for the Acheulian. Christopher J. Lepre, Hélène Roche, Dennis V. Kent, Sonia Harmand, Rhonda L. Quinn, Jean-Philippe Brugal, Pierre-Jean Texier, Arnaud Lenoble, Craig S. Feibel. Nature Volume: 477, Pages: 82?85 Date published: (01 September 2011) DOI: doi:10.1038/nature10372
Hominids: Oldowan Acheulean
Archaeology:
Important specimens: Earliest Acheulean
Notes: Dating is not based on traditional physical connection (walking the outcropping facies). This will likely be a point of contention as there is no direct physical connection between the dated units and the artifacts. Units of younger age are known from nearby.
Location: Kokiselei KS4, Nachukui Formation, West Turkana, Kenya
Map location/coordinates reference: 2011. An earlier origin for the Acheulian. Christopher J. Lepre, Hélène Roche, Dennis V. Kent, Sonia Harmand, Rhonda L. Quinn, Jean-Philippe Brugal, Pierre-Jean Texier, Arnaud Lenoble, Craig S. Feibel. Nature Volume: 477, Pages: 82?85 Date published: (01 September 2011) DOI: doi:10.1038/nature10372
Key references: 2011. An earlier origin for the Acheulian. Christopher J. Lepre, Hélène Roche, Dennis V. Kent, Sonia Harmand, Rhonda L. Quinn, Jean-Philippe Brugal, Pierre-Jean Texier, Arnaud Lenoble, Craig S. Feibel. Nature Volume: 477, Pages: 82?85 Date published: (01 September 2011) DOI: doi:10.1038/nature10372
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