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Lab number
Field number
Material dated
bone collagen; collagène osseux
in the Livingstone Range, 1829 m asl, Oldman drainage, southwestern Alberta
Map sheet
82 G/15
R.K. Brulotte
Date submitted
March 15, 0098
Measured Age
4425 ± 235
Normalized Age
4505 ± 235
δ13C (per mil)
subunits 6A, 6B, 6C, 6D, 6E, 6F, and 6H, unit 1, level 6, associated with a soil change, the first appearance of large mammals and cultural materials
Additional information
In his comment, Brulotte mentions a level 5 date from Beta, 3050 + 130 BP, associated with Pelican Lake points, but further details are not available.
DkPp-11, Racehorse Rockshelter: This stratified deposit is rich in small mammal remains suitable for palaeoenvironmental analysis. Small mammals are present from the deepest levels, dated by S-2417. Level 6, dated by S-2418, marks the first appearance of large mammals and cultural materials in the rockshelter, along with an increase in small mammal diversity. The Level 6 assemblage indicates an ameliorated climate and the establishment of a mixed-forest/grassland ecotone.