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Lab number
GX-201
Material dated
horse bone collagen; collagène osseux de cheval
Taxa dated
Equus sp.
Locality
Frontenac County, Rideau drainage, Ontario
Map sheet
31 C/01
Submitter
W.A. Gorman
Date submitted
July 9, 0099
Measured Age
815 ± 110
Normalized Age
895 ± 110
δ13C (per mil)
-20.0
Significance
palaeobiology, anomalous; paléobiologie, anormal
Context
gravel pit near Hemlock Park, the bone unaltered in appearance
Associated taxa
Mammalia: Equus sp
Additional information
Carbonate fraction dated 310 +/- 115 BP. The carbonate date may provide the more reliable age.
Comments
BbGc-VP, Hemlock Park: Horse bones recovered from what appeared to be glacial outwash were expected to yield a late Pleistocene age. The structure of the teeth suggested a fossil horse. However, the resulting collagen date neither matches that expectation nor provides a reasonable age for a horse that could have been introduced during the historic period. As Krueger notes in the date list, collagen is "far superior" to carbonate in cases of discordance. This date may represent an exception to that rule.

References