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Canada / AB / DkPg-? (Kipp) / GSC-2256
- Lab number
- GSC-2256
- Field number
- SF-74-191
- Material dated
- bison bone collagen; collagène osseux de bison
- Taxa dated
- Bison sp. (431 g, id. by C.S. Churcher)
- Locality
- Ponomar gravel pit on the northeast side of Oldman River, 860 m asl, about 13 km west-northwest of Lethbridge and 4 km west-southwest of Kipp, Alberta
- Map sheet
- 82 H/14
- Submitter
- A.M. Stalker
- Date submitted
- May 28, 0098
- Normalized Age
- 650 ± 50
- δ13C (per mil)
- -20.2
- Significance
- palaeobiology; paléobiologie
- Context
- poorly sorted sand and gravel, 1-3 m below the surface of the second terrace above Oldman River
- Associated taxa
- Mammalia: Bison sp
- Comments
- DkPg-VP, Kipp: The second terrace base is 7 m, and its top 10 m, above the normal river level. The bison bone is substantially younger than the estimated 3000 years, indicating a fairly recent rejuvenation of Oldman River, with deepening of its valley, after it had incised to near its present grade. Such rejuvenation is further indicated by decreased meandering of the river in recent time. The cause of this rejuvenation is not known.