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Am J Phys Anthropol ; 44(1): 5-14, 1976 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-1247112

RESUMO

Data are presented on the frequency of the following eight dental traits in 635 Yanomama and 65 Makiritare Indians: upper central incisor rotation or winging, shoveling of maxillary incisors, maxillary molar hypocone reduction, Carabelli's trait, mandibular molar cusp number, mandibular molar cusp pattern rotation of second lower premolar, and pattern of second lower premolar cusps. Yanomama dentition is unusual in the high frequency of six cusps on the mandibular molars. There is marked dental microdifferentiation between villages; significant agreement was observed between a matrix of pairwise "dental distances" based on six morphological traits and corresponding matrices based on 11 genetic systems and on geographic location.


Assuntos
Dentição , Frequência do Gene , Indígenas Sul-Americanos , Brasil , Humanos , Venezuela
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