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Cranid
CranID was created in 1992 by anthropologist Richard Wright of the University of Sydney to infer the probable geographic origin of unknown crania that are found in archaeological, forensic and repatriation cases. Wright created the program to establish uniformity in cranial morphology based on the assumption that there is a high correlation between geographical location and cranial morphology. This was the first standardized program to evaluate the similarity and dissimilarity of cranial morphological characteristics of an unknown cranium and the database.〔Kallenberger, Lauren, and Varsha Pilbrow. "Using CRANID to Test the Population Affinity of Known Crania." Journal of Anatomy 221.5 (2012): 459–464. PMC. Web. 15 Nov. 2015.〕 == Software == CranID is a free software program that utilizes multivariate linear discriminant analysis and nearest neighbor discriminant analysis in conjunction with 29 cranial measurements to asses the geographic origin, which can be used to infer the ancestry of an unknown cranium. CranID compares an unknown cranium with 74 geographic samples, from 3,163 crania from 39 different populations.〔Hughes, S., Wright, R., Barry, M. "Virtual Reconstruction and Morphological Analysis of the Cranium of an Ancient Egyptian Mummy." Australasian Physical & Engineering Sciences in Medicine. Volume 28 (2005).〕 The measurements and landmarks used in this program to compare an unknown cranium with the database consist of glabello-occipital length, nasio-occipital length, basion-nasion length, basion-bregma height, maximum cranial breadth, maximum frontal breadth, biauricular breadth, biasterionic breadth, basion-prosthion length, nasion-prosthion height, nasal height and breadth, orbit height and breadth, bijugal breadth, palate breadth, bimaxillary breadth, zypomaxillary subtense, bifrontal breadth, nasio-frontal subtense, biorbital breadth, interorbital breadth, cheek height, frontal chord, nasion-bregma subtense (frontal subtense), parietal chord, bregma-lambda subtense (parietal subtense), occipital chord and lambda-opisthion subtense (occipital subtense). Each cranial measurement and their definitions were taken from W.W. Howells' data set.〔Cox, Margaret. The Scientific Investigation of Mass Graves: Towards Protocols and Standard Operating Procedures. Cambridge University Press 2008.〕
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