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- Lab number
- Beta-16159
- Material dated
- bear bone collagen; collagène osseux d' ours
- Taxa dated
- Ursus arctos mandible (CMN-35965, id. by C.R. Harington)
- Locality
- Hunker Creek, Klondike District, Yukon drainage, Yukon Territory
- Map sheet
- 115 O/15
- Submitter
- C.R. Harington
- Date submitted
- July 29, 0098
- Measured Age
- 41000 ± 1050
- Normalized Age
- 41085 ± 1050
- δ13C (per mil)
- -19.82
- Significance
- palaeobiology; paléobiologie
- Context
- placer deposits at J. Erickson's claim
- Associated taxa
- Mammalia: Ursus arctos
- Additional information
- del N-15 = 4.39
- Comments
- KlVi-1, Dawson Locality 16: The bison tibia dated by I-11051 displays complex spiral fractures induced when the bone was in a fresh condition, possibly by a person seeking to extract the marrow. The date suggests that the bone represents a wood bison (Bison bison athabascae). The caribou antler dated by Beta-27512 is interpreted as a punch that could have been employed for indirect percussion flaking of stone tools such as blades or microblades. It is noteworthy that the date is co-eval with the time range of the Nenana complex known in neighbouring Alaska. The caribou antler dated by I-8580 exhibits no modifications attributable to human activity, but the date documents the presence of caribou in the Beringian refugium at the height of the late Wisconsinan; most of this antler is preserved in the collections of the Canadian Museum of Nature. Beta-16159 indicates that brown bears lived in eastern Beringia during mid-Wisconsinan time.