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Approximate age:244,000 years old=average of minimum (0.088 Ma) and maximum (0.4 Ma)
Date based on: ESR, U-series See map of sites with similar ages
Dating reference: Dating on this site is controversial. See Mehlman, M. J. (1987). Provenience, age and associations of archaic Homo sapiens crania from Lake Eyasi, Tanzania. Journal of archaeological science, 14(2), 133-162.
; Mehlman, M. J. (1989). Later Quaternary archaeological sequences in northern Tanzania. University of Illinois at Urbana-Champaign.
Note that new, tightt dates on from area (~128-88 Ka) are from a frontal fragment found in late 2000's (DomÌnguez-Rodrigo, et al. 2008) and only provide an approximation for the age of the Eyasi cranium.
It is likely significantly older, and the old end of the age range used for the Fossilized DB is arbitrarily placed at 400 Ka. Previous age estimates have varied widely, from ~125 Ka (Woodward, 1921; Pycraft
et al., 1928; Oakley, 1957;
Clark, 1959; Clark et al.,
1950, 1968; Klein, 1973,
1994; Santa Luca, 1978;
Partridge, 1982; Vrba,
1982; Stringer, 1986)
to middle Pleistocene (Klein, 1994; Rightmire,
1998)
to later early Pleistocene (Klein, 1973, 1994;
Partridge, 1982; Hay, 1976;
Walter et al., 1991, 1992;
Tamrat et al., 1995;
Kimbel, 1995; Delson &
van Couvering, 2000)
Hominids: Homo rhodesiensis Homo sapiens
Archaeology:
Important specimens: Hominin cranium
Notes: Sangoan (Acheulean-MSA transition with handaxes, picks, points, blades)
Location: Gregory Rift, Tanzania
Map location/coordinates reference: DomÌnguez-Rodrigo, M., Mabulla, A., Luque, L., Thompson, J. W., Rink, J., Bushozi, P., et al. (2008). A new archaic Homo sapiens fossil from Lake Eyasi, Tanzania. Journal of Human Evolution, 54(6), 899-903.
Key references:
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Lake Eyasi
