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Lab number
AECV-1111C
Material dated
bison bone collagen; collagène osseux de bison
Taxa dated
Bison sp. horncore
Locality
east Edmonton, North Saskatchewan River, Alberta
Map sheet
83 H/11
Submitter
J.A. Burns
Date submitted
September 22, 0098
Normalized Age
10730 ± 160
Significance
palaeobiology; paléobiologie
Context
gravel pit
Associated taxa
Mammalia: Bison sp
Comments
Clover Bar Pit: This is one of five gravel pits east of Edmonton that have yielded vertebrate fossils from deposits representing the Mid-Wisconsinan Interstadial (Burns and Young, 1994; Young et al., 1994). The stratigraphy is more complex than in some of the other pits, because a larger amount of preglacial gravel has been reworked during postglacial terrace development (Burns and Young, 1994: 394). The fossils occur mainly in the Saskatchewan gravels that represent the valley fill of the Beverly Valley, the preglacial ancestor of the North Saskatchewan River valley. The site was overrun by Laurentide ice during the Late Wisconsinan, after which the North Saskatchewan River incised the whole sequence of sediments, forming terraces, and resuming the occasional deposition of bones in post-glacial alluvium (e.g., AECV-1111c, -1203c).

References