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Kathleen Springer - 3 Jeff Pigati - 3 — - 1 Sally Reynolds - 1 Bente Philippsen - 1 Loren Davis - 1 sapiens - 1 Matthew Bennett - 1
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Sands - 3 Service - 2 Geological Survey - 2 Science - 2 US Geological Survey - 1 Washington - 1 National Parks Service - 1 Springer - 1

Search resuls for: "Jeff Pigati"


3 mentions found


☆ 20,000-year-old footprints show humans have been in the Americas longer than previously thought, scientists say
  + stars: | 2023-10-09 | by ( Jenny Mcgrath | ) www.businessinsider.com   time to read: +4 min
In 2021, researchers dated ancient human footprints in New Mexico to at least 20,000 years ago. New data bolsters the evidence for the original date, among the earliest for humans in the Americas. AdvertisementAdvertisementIn White Sands National Park, New Mexico, mingled among tracks of mammoths, ground sloths, and other ancient animals, researchers found human footprints. The footprints — and other recent evidence — push back the date of human arrival by thousands of years. They radiocarbon dated pollen grains from conifer plants in the area.
Persons: —, Kathleen Springer, Sally Reynolds, Jeff Pigati, Bente Philippsen, Loren Davis Organizations: Service, Sands, US Geological Survey, Washington, National Parks Service, Geological Survey, Science, Springer, Oregon State University, NPR Locations: New Mexico, Americas, , New Mexico, White
☆ New tests confirm antiquity of ancient human footprints in New Mexico
  + stars: | 2023-10-05 | by ( Will Dunham | ) www.reuters.com   time to read: +4 min
A 2021 study by these researchers also dated the footprints, based on tiny plant seeds embedded in the sediment alongside them, to about 21,000 to 23,000 years ago. This paper is that corroborative exercise," added study co-lead author Kathleen Springer, also a USGS research geologist in Denver. Scientists believe our species entered North America from Asia by trekking across a land bridge that once connected Siberia to Alaska. The researchers also used optically stimulated luminescence dating to determine the age of quartz grains within the footprint-bearing sediments. "And just like today, if anyone walks in a similar setting, their footprints are preserved if they are covered with another layer of sediment," Springer added.
Persons: Jeff Pigati, Kathleen Springer, sapiens, Matthew Bennett, Bennett, Pigati, Springer, Will Dunham, Rosalba O'Brien Organizations: Sands, U.S . Geological Survey, Scientists, North America, Bournemouth University, Thomson Locations: North America, New Mexico, Illinois, Denver, Africa, Asia, Siberia, Alaska, North, England
☆ 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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