How long have humans lived in North America? These footprints challenge an old belief yahoo.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from yahoo.com Daily Mail and Mail on Sunday newspapers.
New research shows that fossil footprints discovered at the edge of an ancient lakebed in New Mexico s White Sands National Park date back to between 21,000 and 23,000 years ago. Previously, archaeologists thought human ancestors arrived about 15,000 years ago. The research was published Thursday in the journal Science. Scientists analyzed conifer pollen and quartz grains found at the site to reach date estimates. Earlier research that analyzed seeds of aquatic plants found at the site also produced similar date estimates. Ancient humans at White Sands lived alongside giant ground sloths, bison and other megafauna.
New research shows that fossil footprints discovered at the edge of an ancient lakebed in New Mexico s White Sands National Park date back to between 21,000 and 23,000 years ago. Previously, archaeologists thought human ancestors arrived about 15,000 years ago. The research was published Thursday in the journal Science. Scientists analyzed conifer pollen and quartz grains found at the site to reach date estimates. Earlier research that analyzed seeds of aquatic plants found at the site also produced similar date estimates. Ancient humans at White Sands lived alongside giant ground sloths, bison and other megafauna.
Ancient footprints of any kind left by humans or megafauna like big cats and dire wolves can provide archaeologists with a snapshot of a moment in time
Further evidence points to footprints in New Mexico being the oldest sign of humans in Americas venezuelastar.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from venezuelastar.com Daily Mail and Mail on Sunday newspapers.