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Canada / NT / PbRq-? (Worth Point) / TO-2294
- Lab number
- TO-2294
- Material dated
- seal bone collagen; collagène osseux de phoque
- Taxa dated
- Phoca cf. hispida innominate and scapula (0.358 g dry, id. by C.R. Harington)
- Locality
- 10 km south of Worth Point, Banks Island, Northwest Territories
- Map sheet
- 98 B/02
- Submitter
- J-S. Vincent
- Date submitted
- February 18, 0098
- Measured Age
- 41910 ± 800
- Normalized Age
- 42320 ± 800
- Significance
- palaeobiology; paléobiologie
- Context
- nearshore sands and find gravels of a marine terrace of the Meek Point Sea, exposed in a wave-cut cliff, 2 m asl
- Associated taxa
- Mammalia: Phoca hispida cf.
- Additional information
- AMS date.
- Comments
- PbRq-VP, Worth Point: The seal bones dated by TO-2294 were associated with marine shells dated to concordant ages by GSC-5095 and TO-2206. Vincent comments: "As discussed in Vincent (1992), the Meek Point Sea is considered to postdate or at least be coextensive with the Thesiger and Prince Alfred lobes of the M'Clure Stade of Amundsen Glaciation. These lobes may have respectively impinged on the southwestern and northern coasts of Banks Island as early as the Sangamonian sensu lato to Early Wisconsinan. Although some finite ages were obtained for the shell and seal bone samples, much care must be taken when interpreting the results. ...the ages are of much interest since they clearly demonstrate that the last sea to have covered western Banks Island undoubtedly predates the Late Wisconsinan. It should also be stressed that there are apparently no raised Late Wisconsinan/Holocene marine deposits on the western coast of the island."