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Mexican archaeologists extract 10,000 year-old skeleton from flooded cave

25 August 2010 [13:43] - TODAY.AZ
One of the earliest human skeletons of America, which belonged to a person that lived more than 10,000 years ago, in the Ice Age, was recovered by Mexican specialists from a flooded cave in Quintana Roo. The information it has lodged for centuries will reveal new data regarding the settlement of the Americas.

The Young Man of Chan Hol, as the skeleton is known among the scientific community, due to the slight tooth wear it presents, which indicates an early age, is the fourth of our earliest ancestors found in the American Continent, and has been studied as part of a National Institute of Anthropology and History (INAH) project.

After 3 years of studies conducted In Situ to prevent information loss, the Chan Hol skeleton was subtracted from the water by a team of specialists headed by biologist Arturo Gonzalez, coordinator of the project Study of Pre Ceramic Men of Yucatan Peninsula and director of Museo del Desierto de Coahuila (Museum of the Desert of Coahuila), with the participation of speleodivers Eugenio Acevez, Jeronimo Aviles and Luis Garcia, part of the recently founded Instituto de la Prehistoria de America (Institute for American Prehistory), funded by INAH.

The Young Man of Chan Hol, named after the cenote it was found in, was recovered in a 542 meters long and 8.3 deep cave where stalagmites abound, and is reached after going through flooded, dark and difficult labyrinths.

UNAM (National University of Mexico) physical anthropologists that studied the remains think they were placed in the cave after a funerary ceremony that took place by the end of Pleistocene, when the sea level was 150 meters lower, before the caves, probably walked by this person, got flooded.

Sixty per cent of the skeleton was collected: representative bones of 4 extremities, vertebrae, ribs and the skull, as well as several teeth. Physical anthropologists find this “great,” since in cases of 10,000 years old samples usually only the skull or jawbone is found, and sometimes, 20 or 30 percent of the skeleton.

Along with the skeletons of the Woman of Naharon, Woman of Las Palmas and Man of El Templo, discovered as well in flooded caves near Tulum, Quintana Roo in recent years, the Young Man of Chan Hol is a key factor to understand the settlement of the Americas, since its finding strengthens the hypothesis of the American Continent being populated by several migrations from Asia.

Arturo Gonzalez, paleo biology specialist, mentioned that the 4 skeletons found in Quintana Roo flooded caves “reveal that migrations from Southeast Asia happened earlier than Clovis groups’ ones, who would have crossed from Northern Asia through Bering Strait as well, by the end of the Ice Age.

“Our dating confirmed that skeletons collected in Quintana Roo caves belonged to members of Pre Clovis groups and are part of the few human rests found from the American Terminal Pleistocene, with physical features similar to those of people from Central and South Asia, suggesting there were several migrations to our continent”.

The first physical anthropology report, conducted by physical anthropologists Alejandro Terrazas and Martha Benavente, from the UNAM (National University of Mexico) Institute of Anthropological Investigations, indicates the skeleton belonged to a young adult, probably a male; legs were flexed to the left and arms extended to both sides of the body, which is a “new fact to be studied”, since no skeleton had been found before in this position.

The skeleton of the Young Man of Chan Hol must stay as they are for several months until their consolidation, before undergoing morphoscopical studies (of the skull and bones) to verify if it shares morphological and physical features with the other 3 skeletons found in the caves; gender, age, cause of death and age at the time of death will be confirmed too. Carbon 14 Dating will be conducted as well as Computed Axial Tomography (CAT) studies to determine composition, density and interior form of the bones.


/Artdaily.org/
URL: http://www.today.az/news/interesting/72587.html

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