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Oldest dog debated

Fossil jaw may, or may not, come from oldest known example of man’s best friend

By
5:15pm, July 22, 2010

Every dog has its day, but that day took more than 14,000 years to dawn for one canine. A jaw fragment found in a Swiss cave comes from the earliest known dog, according to scientists who analyzed and radiocarbon-dated the fossil.

Dog origins remain poorly understood, however, and some researchers say that dog fossils much older than the Swiss find have already been excavated.

An upper-right jaw unearthed in 1873 in Kesslerloch Cave, located near Switzerland’s northern border with Germany, shows that domestic dogs lived there between 14,100 and 14,600 years ago, say archaeology graduate student Hannes Napierala and archaeozoologist Hans-Peter Uerpmann, study coaut

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