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Thought the 12,000 year old footprints in New Mexico were hype, then I read the seed evidence
When the White Sands footprints got pushed back to 23,000 years ago I figured it was another case of a date getting stretched for headlines. What changed my mind was reading that they found Ruppia cirrhosa seeds in the same layers and dated those instead of the pollen, which fixes the old problem of aquatic plants soaking up old carbon. Does anyone know if other sites in the Southwest are getting re-dated with the same seed method now?
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bettyk5313d ago
The seed dating thing is a bigger deal than people give it credit for. If Ruppia seeds can lock down a date that tight, someone should run the same test at the Paisley Caves in Oregon, where the coprolites have always been a mess to date clean.
Once a few of these sites line up with the same method, the whole "who got here first" fight basically ends.
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