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Approximate age:555,000 years old=average of minimum (0.509 Ma) and maximum (0.601 Ma)
Date based on: Ar-Ar (!!base of unit K1 is below 601k Ar-Ar date); Tron & McBrearty, Tephrostratigraphy and the Acheulian to
Middle Stone Age transition in the
Kapthurin Formation, Kenya, Journal of Human Evolution (2002) 42, 211?235
doi:10.1006/jhev.2001.0513
Available online at http://www.idealibrary. See map of sites with similar ages
Dating reference: Tron & McBrearty, Tephrostratigraphy and the Acheulian to
Middle Stone Age transition in the
Kapthurin Formation, Kenya, Journal of Human Evolution (2002) 42, 211?235
doi:10.1006/jhev.2001.0513
Available online at http://www.idealibrary.
Hominids:
Archaeology:Acheulean
Important specimens:
Notes: Coordinates taken from upper K1 locality
Location: Kapthurin K3, K2, and upper K1, Kapthurin Formation, Kenya
Map location/coordinates reference: Johnson CR, McBrearty S (2012) Archaeology of middle Pleistocene lacustrine and spring paleoenvironments in the Kapthurin Formation, Kenya. Journal of Anthropological Archaeology 31(4): 485-499.
Key references:
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