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A 3-D geometric morphometric study of intraspecific variation in the ontogeny of the temporal bone in modern Homo sapiens

Smith, Heather F ; Ritzman, Terrence ; Otárola-Castillo, Erik ; Terhune, Claire E

Journal of Human Evolution, November 2013, Vol.65(5), pp.479-489 [Periódico revisado por pares]

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  • Título:
    A 3-D geometric morphometric study of intraspecific variation in the ontogeny of the temporal bone in modern Homo sapiens
  • Autor: Smith, Heather F ; Ritzman, Terrence ; Otárola-Castillo, Erik ; Terhune, Claire E
  • Assuntos: Ontogenetic Trajectory ; Cranial Variation ; Subadult Temporal Bone Morphology ; Ontogenetic Trajectory ; Cranial Variation ; Subadult Temporal Bone Morphology ; Anthropology ; Biology
  • É parte de: Journal of Human Evolution, November 2013, Vol.65(5), pp.479-489
  • Descrição: This study addresses how the human temporal bone develops the population-specific pattern of morphology observed among adults and at what point in ontogeny those patterns arise. Three-dimensional temporal bone shape was captured using 15 landmarks on ontogenetic series of specimens from seven modern human populations. Discriminant function analysis revealed that population-specific temporal bone morphology is evident early in ontogeny, with significant shape differences among many human populations apparent prior to the eruption of the first molar. As early as five years of age, temporal bone shape reflects population history and can be used to reliably sort populations, although those in closer geographic proximity and molecular affinity are more likely to be misclassified. The deviation of cold-adapted populations from this general pattern of congruence between temporal bone morphology and genetic distances, identified in previous work, was confirmed here in adult and subadult...
  • Idioma: Inglês

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