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Lab number
Material dated
charred bison bone collagen; collagène osseux de bison
Taxa dated
Bison sp. cervical vertebra
south side of the "Gap" in the Livingstone Range, 1400 m asl, right bank of the Oldman River, Alberta
Map sheet
82 G/16
B.O.K. Reeves
Date submitted
March 14, 0097
Measured Age
9520 ± 240
Normalized Age
9600 ± 240
δ13C (per mil)
Palaeoindian?; Paléoindien
Stratigraphic component
Floor 4
Floor 4, Ah horizon of buried soil under volcanic ash, 2.7 m depth
Associated taxa
Mammalia: Bison sp
Additional information
It is assumed that this date was not corrected previously for isotopic fractionation.
DlPo-20, Gap: Four archaeological living floors were found in the Ah horizons of buried palaeosols. The uppermost, Floor 1, yielded bison and canid bones but has not been dated and lacks culturally diagnostic artifacts. A sample of volcanic ash between Floors 2 and 3 was identified by J.A. Westgate as Mazama tephra. Of two dates on Floor 4, GSC-1158 is considered the better determination.