Human footprints in Central Mexico older than 40,000 years

Authors: González, S., Huddart, D., Bennett, M.R. and González-Huesca, A.

Journal: Quaternary Science Reviews

Volume: 25

Issue: 3-4

Pages: 201-222

ISSN: 0277-3791

DOI: 10.1016/j.quascirev.2005.10.004

Abstract:

The timing, route and origin of the first colonization to the Americas remains one of the most contentious topics in human evolution. A number of migration routes have been suggested and there are different views as to the antiquity of the earliest human occupation. Some believe that settlement happened as early as 30 ka BP, but most of the currently accepted early sites in North America date to the latest Pleistocene, related to the expansion of the Clovis culture, while the oldest directly radiocarbon dated human remains are 11.5 ka BP. In this context new evidence is presented in this paper, in the form of human footprints preserved in indurated volcanic ash, to suggest that Central Mexico was inhabited as early as over 40 ka BP. Human and animal footprints have been found within the upper bedding surfaces of the Xalnene volcanic ash layer that outcrops in the Valsequillo Basin, south of Puebla, Mexico. This ash layer was produced by a subaqueous monogenetic volcano erupting within a palaeo-lake, dammed by lava within the Valsequillo Basin during the Pleistocene. The footprints were formed during low stands in lake level along the former shorelines and indicate the presence of humans, deer, canids, big felids, and probably camels and bovids. The footprints were buried by ash and lake sediments as lake levels rose and transgressed across the site. The ash has been dated to at least 40 ka BP by OSL dating of incorporated, baked lake sediments. © 2005 Elsevier Ltd. All rights reserved.

Source: Scopus

Human footprints in Central Mexico older than 40,000 years

Authors: González, S., Huddart, D., Bennett, M.R. and González-Huesca, A.

Journal: QUATERNARY SCIENCE REVIEWS

Volume: 25

Issue: 3-4

Pages: 201-222

ISSN: 0277-3791

DOI: 10.1016/j.quascirev.2005.10.004

Source: Web of Science (Lite)

Human footprints in Central Mexico older than 40,000 years

Authors: Gonzalez, S., Huddart, D., Bennett, M.R. and Gonzalez-Huesca, A.

Journal: Quaternary Science Reviews

Volume: 25

Pages: 201-222

ISSN: 0277-3791

DOI: 10.1016/j.quascirev.2005.10.004

Abstract:

The timing, route and origin of the first colonization to the Americas remains one of the most contentious topics in human evolution. A number of migration routes have been suggested and there are different views as to the antiquity of the earliest human occupation. Some believe that settlement happened as early as 30 ka BP, but most of the currently accepted early sites in North America date to the latest Pleistocene, related to the expansion of the Clovis culture, while the oldest directly radiocarbon dated human remains are 11.5 ka BP. In this context new evidence is presented in this paper, in the form of human footprints preserved in indurated volcanic ash, to suggest that Central Mexico was inhabited as early as over 40 ka BP.

Human and animal footprints have been found within the upper bedding surfaces of the Xalnene volcanic ash layer that outcrops in the Valsequillo Basin, south of Puebla, Mexico. This ash layer was produced by a subaqueous monogenetic volcano erupting within a palaeo-lake, dammed by lava within the Valsequillo Basin during the Pleistocene. The footprints were formed during low stands in lake level along the former shorelines and indicate the presence of humans, deer, canids, big felids, and probably camels and bovids. The footprints were buried by ash and lake sediments as lake levels rose and transgressed across the site. The ash has been dated to at least 40 ka BP by OSL dating of incorporated, baked lake sediments.

http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6VBC-4HNSBBB-3&_user=1682380&_coverDate=02%2F28%2F2006&_rdoc=1&_fmt=&_orig=search&_sort=d&view=c&_acct=C000011378&_version=1&_urlVersion=0&_userid=1682380&md5=040f713d60c11948a6feba49f24e99db

Source: Manual

Preferred by: Matthew Bennett