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Monday, November 23, 2009

Photo: World's Oldest Footprints Found in Nevada?


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The world's oldest footprints? Or just "paired rows of dots," as one critical scientist called them?

The ancient depressions in this layer of rock are part of a 570-million-year-old trackway, an Ohio State University professor says. If that's true, they are 30 million years older than any previously found animal tracks.

Photograph courtesy Loren Babcock