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Age and Sex-Related Geometrical Variation of Ramus mandibulae of Sus scrofa's (Mammalia: Artiodactyla) Jaws International Journal of Morphology
Hohl,Leandro dos S. L; Sicuro,Fernando L; Azorit,Concepción; Carrasco,Rafael; Rocha-Barbosa,Oscar.
Morphological variation of the ramus mandibulae of wild Sus scrofa was described and correlated to sex and age differences. Young forms (n=27, 15 males, 12 females) and adults (n=23, 13 males, 10 females) were analyzed through Geometric Morphometrics (2-D) to assess differences between groups. We found significant differences between age- and sex-related shape variations at ramus mandibulae level. Young wild boars present bulky angular process with backward oriented coronoid process, while adults show slender jaw vertical ramus, and orthogonally oriented coronoid process. The ramus mandibulae in female wild boars is more robust and bulky than in males. The morphological changes between young and adult forms are related to alterations in the osteo-muscular...
Tipo: Journal article Palavras-chave: Mandible; Ontogeny; Sexual Dimorphism; Wild boar.
Ano: 2014 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022014000400026
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