Articlediamond2009

Sexual Dimorphism Determination from the Lineal Dimensions of Skulls

Daniela Alejandra Zavando Matamala · Iván Suazo Galdames · Ricardo Luiz Smith

30 citations0/0 files storedInternational Journal of Morphology

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Forensic Anthropology and Bioarchaeology Studies Pleistocene-Era Hominins and Archaeology Morphological variations and asymmetry

Abstract

The sex determination from human skulls can be made by means of morphologic and morphometric methods have been broadly studied.These methods contribute with objective data; however, they present interpopulational variability.The purpose of this article is to determine sexual dimorphism using lineal dimensions in a sample of human skulls collection belonging to the Universidade Federal de São Paulo (UNIFESP), calculating the discriminant function.To complete the selection approaches, 226 skulls were analyzed.Mensurements were carried out among the following reference points of the skull: right Eurion-left Eurion (Eu -Eu), Glabella-Opisthocranion (Gla -Op), Basion -Bregma (Ba-Br), Nasion -Prosthion (Na-Pr), Bizigomatic (Zi-Zi), Maximal width of the piriform aperture (MWPA), and Nasion -Spinal (Na-ANS).Descriptive and inferential statistics (student's t-test proved p <0.05, analysis of discriminant function) for sex were calculated.Statistically significant differences were seen in the following dimensions: Gla -Op, Na -Pro, Zi -Zi, and Na -ANS.Only for the distances Zi -Zi and Na-ANS, a discriminant function with a yield of 82% was identified for the correct classification for sex.The authors conclude that the lineal dimensions present a limited utility for sexual dimorphism in this sample.

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References

1963The human skeleton in forensic medicine 1955The human skeleton in forensic medicine. I.1998Sexual dimorphism in the crania and mandibles of South African whites 2008Sexual Dimorphism in America: Geometric Morphometric Analysis of the Craniofacial Region*1996Mandibular ramus flexure: A new morphologic indicator of sexual dimorphism in the human skeleton 2005Determining the Sex of Human Remains Through Cranial Morphology 2004Sexual dimorphism and discriminant function sexing in indigenous South African crania 2006Sexual Dimorphism in the Subadult Mandible: Quantification Using Geometric Morphometrics*

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2022A Geometric Morphometric Study on Sexual Dimorphism in Viscerocranium 2012Age Effect in the Morphological Traits Performance for Sex Determination in Human Skulls and Mandibles 2014CT scan images for sex discrimination – a preliminary study on Gujarati population 2022SexEst: An open access web application for metric skeletal sex estimation

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