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Canada / AB / EfOm-? (Bindloss) / GSC-1199
- Lab number
- GSC-1199
- Material dated
- mammoth bone collagen; collagène osseux de mammouth
- Taxa dated
- mostly Mammuthus sp. (380 g, id. by C.S. Churcher)
- Locality
- right (south) bank of the Red Deer River, 590 m asl, 15 m above river level, 100 m below the general prairie level, just above the confluence with the South Saskatchewan River, southeastern Alberta
- Map sheet
- 72 L/16
- Submitter
- A.M. Stalker
- Date submitted
- March 7, 0098
- Normalized Age
- 14200 ± 1120
- δ13C (per mil)
- -19.4
- Significance
- palaeobiology, anomalous; paléobiologie, anormal
- Context
- CPR Pit, sand and gravel terrace, 2-4 m depth
- Associated taxa
- Mammalia: Mammuthus sp (see also GSC-1387)
- Additional information
- This date is anomalous in relation to glacial chronology, probably too young.
- Comments
- EfOm-VP, Empress: This Canadian Pacific Railway gravel pit contains abundant bones which were washed into place and thus were rounded, commonly damaged, and widely dispersed in coarse gravel. Stalker notes that the discrepancy between the two dates is unexplained, although GSC-1199 may have suffered contamination during collection by three persons; the sample was also soft, damp, and weathered, with modern rootlets that were removed during preparation. GSC-1387 appears more reliable, but both dates are substantially older than expected, and neither allows sufficient time for post-Classical Wisconsin incision of the large Red Deer valley. The possibility of the valley have been cut earlier must now be considered. In addition, the presence of a large, well developed fauna so close to the time of the Classical Wisconsin glaciation seems improbable. If GSC-1387 is correct, the fauna may have lived in a prolonged interval between two advances of Wisconsinan ice. Burns (1996: 110) takes a different view, suggesting that both dates are too young.