Evidence of humans in North America during the Last Glacial Maximum-Reference-Cited by-同舟云学术

Evidence of humans in North America during the Last Glacial Maximum

Published:2021-09-24 Issue:6562 Volume:373 Page:1528-1531
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Bennett Matthew R.¹^ORCID,Bustos David²^ORCID,Pigati Jeffrey S.³^ORCID,Springer Kathleen B.³^ORCID,Urban Thomas M.⁴^ORCID,Holliday Vance T.⁵⁶,Reynolds Sally C.¹^ORCID,Budka Marcin¹^ORCID,Honke Jeffrey S.³^ORCID,Hudson Adam M.³^ORCID,Fenerty Brendan⁶^ORCID,Connelly Clare²^ORCID,Martinez Patrick J.²^ORCID,Santucci Vincent L.⁷^ORCID,Odess Daniel⁸^ORCID

Affiliation:

1. Institute for Studies in Landscapes and Human Evolution, Bournemouth University, Poole, BH12 5BB, UK.

2. National Park Service, White Sands National Park, P.O. Box 1086, Holloman AFB, NM 88330, USA.

3. US Geological Survey, Denver Federal Center, Box 25046, MS 980, Denver, CO 80225, USA.

4. Department of Classics and Cornell Tree Ring Laboratory, Cornell University, Ithaca, NY 14853, USA.

5. School of Anthropology, P.O. Box 210030, University of Arizona, Tucson, AZ 85721-0030, USA.

6. Department of Geosciences, University of Arizona, Tucson, AZ 85721-0030, USA.

7. National Park Service, Geologic Resources Division, 1849 C Street NW, Washington, DC 20240, USA.

8. National Park Service, Cultural Resources Directorate, Washington, DC 20240, USA.

Abstract

Early footsteps in the Americas Despite a plethora of archaeological research over the past century, the timing of human migration into the Americas is still far from resolved. In a study of exposed outcrops of Lake Otero in White Sands National Park in New Mexico, Bennett et al . reveal numerous human footprints dating to about 23,000 to 21,000 years ago. These finds indicate the presence of humans in North America for approximately two millennia during the Last Glacial Maximum south of the migratory barrier created by the ice sheets to the north. This timing coincided with a Northern Hemispheric abrupt warming event, Dansgaard-Oeschger event 2, which drew down lake levels and allowed humans and megafauna to walk on newly exposed surfaces, creating tracks that became preserved in the geologic record. —AMS

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference75 articles.

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