05-December-2008, 02:34 PM
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Established Member
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Join Date: Jan 2006
Location: Madison, Ohio
Posts: 1,701
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Anthropologist Christy Turner of Arizona State University has done the preeminent work on the dental variations of Native American people and relating them to their Asian ancestors. The variation he notes are called Sinodonty and Sundadonty.
Quote:
Sinodonty and Sundadonty
Anthropologist Christy Turner identified two patterns, Sinodonty and Sundadonty, for East Asia, within the "Mongoloid dental complex"[1]. The latter is regarded as having a more generalised, Australoid morphology and having a longer ancestry than its offspring, Sinodonty.
Sino and Sunda refer to China and Sundaland, while 'dont' refers to teeth. Sundaland is a biogeographical region of Southeast Asia that comprises the Malay Peninsula and the Indonesian islands of Sumatra, Java, Bali, Borneo, and surrounding smaller islands.
He found the Sundadont pattern in the Jōmon of Japan, Taiwanese aborigines, Filipinos, Indonesians, Thais, Borneans, Laotians, and Malaysians, and the Sinodont pattern in the inhabitants of China, Mongolia, eastern Siberia, Native Americans, and the Yayoi. Characters for Jōmon (Cord marks). The Jomon period ) is the time in Japanese pre-history from about 10,000 BC to 300 BC. Most scholars agree that by around 40,000 BC glaciation had connected the Japanese islands with the Asian mainland.
Sinodonty is a particular pattern of teeth common among Native Americans and some peoples in Asia, in particular the northern Han Chinese and some Japanese populations. The upper first two incisors are not aligned with the other teeth, but rotated a few degrees inward, and, moreover, they are shovel-shaped; the upper first premolar has one root (whereas the upper first premolar in Caucasians has normally two roots; the lower first molar has three roots (whereas it has two roots in Caucasians).
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From NationMaster
It would be interesting to know what tooth structure the mummies had.
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(By the way, I hate it that so many papers in the areas of planetary science and geology are not easily available to the dreaded "non-subscribers". It is like they are screaming at me: "YOU CAN'T HANDLE THE TRUTH". Good, I feel better now.)
"Quaerendo inventis"
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