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” - 2 “ - 2 Kathleen Springer - 2 Jennifer Raff - 2 Thomas Urban - 1 Thomas Stafford - 1 David Bustos - 1 Jeff Pigati - 1
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New Mexico Americas White Sands Alaska Science Russia Albuquerque , New Mexico Brazil
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University of Kansas - 2 White Sands National - 1 Cornell University - 1 United States Geological Survey - 1 Associated Press Health - 1 Science Department - 1 Howard Hughes Medical Institute’s Science - 1 Educational Media Group - 1

Search resuls for: "Jennifer Raff"


2 mentions found


☆ Further Evidence Points to Footprints in New Mexico Being the Oldest Sign of Humans in Americas
  + stars: | 2023-10-05 | by ( Associated Press | Oct. | At P.M. | ) www.usnews.com   time to read: +3 min
The estimated age of the footprints was first reported in Science in 2021, but some researchers raised concerns about the dates. It uses two entirely different materials found at the site, ancient conifer pollen and quartz grains. The new study isolated about 75,000 grains of pure pollen from the same sedimentary layer that contained the footprints. “Dating pollen is arduous and nail-biting,” said Kathleen Springer, a research geologist at the United States Geological Survey and a co-author of the new paper. 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, recording how people or animals walked or limped along and whether they crossed paths.
Persons: ”, Thomas Urban, Thomas Stafford, “, Kathleen Springer, Jennifer Raff Organizations: White Sands National, Cornell University, United States Geological Survey, University of Kansas, Associated Press Health, Science Department, Howard Hughes Medical Institute’s Science, Educational Media Group, AP Locations: New Mexico, Americas, White Sands, Science, Russia, Alaska, Albuquerque , New Mexico, Brazil
☆ Scientists say they’ve confirmed evidence that humans arrived in the Americas far earlier than previously thought
  + stars: | 2023-10-05 | by ( Katie Hunt | ) edition.cnn.com   time to read: +6 min
This date dramatically pushed back the timeline of humans’ history in the Americas, the last landmass to be settled by prehistoric people. National Park ServiceHowever, some archaeologists questioned the age of the footprints established by those initial findings. Human footprints infilled with white gypsum sand at White Sands National Park. A trench at the study site with David Bustos, White Sands National Park's resource program manager, in the foreground. Nor, despite advances in genetic evidence, is it clear whether one or many populations of early modern humans made the long journey.
Persons: ”, Kathleen Springer, “, David Bustos, Jeff Pigati, there’s, Bente, Jennifer Raff Organizations: CNN, Service, Science, Sands, Park Service, Geological Survey, White Sands, Norwegian University of Science, Technology, North, University of Kansas Locations: what’s, New Mexico, Americas, Tularosa, White Sands, North America, Asia, New York City, Cincinnati, Des Moines , Iowa, Alaska
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