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Small skulls of the Canis Variabilis were found in close proximity to Peking Man in Beijing (relationship unknown).
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The Goyete Cavies in Belgium yielded one of the 1st fossil skulls of a proposed paleolithic dog. Mitochondria DNA does not match any present dog or wolf species.
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The Grey Wolf emerges in America from Eurasia between 70,000 and 24,000 years ago alongside the Dire wolf that went extinct. The Grey Wolf is not attributed to its extinction.
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Often referred to as the world's first mummified dog, the "Black Dog of Tumat" was discovered in Yakutia, Siberia. DNA evidence confirmed it as an early dog.
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In Oberkassel Germany remains of the mandible (jawbone) of a modern dog's ancestor were discovered. First believed to be a paleolithic dog, but later tested and found to be that of a domestic dog.
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The split between the wolf species in East and West Eurasia is believed to be responsible for the two modern-day populations (debatable).
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The earliest dog remains found in America were found in Greene County Illinois in what is believed to be a dog burial site. DNA studies have linked it closely with Siberia dogs from Zhokhov Island.