Oldest evidence of animals discovered in the Northwest Territories

Sponge-like body believed to be oldest evidence of animals
Canada.com - Don Mills,Ontario,Canada
Canadian scientists probing a mountaintop in the Northwest Territories have
discovered what they believe to be the oldest evidence of animals on Earth,
...
<http://www.canada.com/news/Sponge+like+body+believed+oldest+evidence+animals/1566247/story.html>

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The microscopic but distinctively patterned remains —unearthed from a dramatic pinnacle in the Mackenzie Mountains about 800 kilometres northwest of Yellowknife — are interpreted by the research team as rock-encased residues from the decomposed tissues of a primordial sea creature that was the earliest common ancestor of all animals, including humans.