Geodesic
Hominization tendencies in the evolution of primates in multidimensional modeling
Mathematica Applicanda, Tome 43 (2015) no. 1, pp. 77-93 Cet article a éte moissonné depuis la source Annales Societatis Mathematicae Polonae Series

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Evolutionary radiation of primates determined many developmental paths among which there is a hominization tendency that leads to the emergence of modern human. This evolution was studied on the basis of measurements constituting Morant and Sergi's index (Sergi(1940)), which were taken on 68 skulls of chosen adult monkeys, apes and fossil hominids. They were classified into 10 separate taxons. The skull measurements were worked out with the help of the following methods: descriptive statistics and discriminant analysis, a method that allow spotting differences between the taxons studied on the basis of Mahalanobis distance. Moreover, analysis of variance, ANOVA, was applied as well as Tukey's multiple comparisons and Kendall's $\tau$ rank correlation coefficient based on the difference in the probability of growth or decrease of one measuring variable in relation to the other one. As a result, the analysis performed showed that apes take their origin from the primitive forms in relation to chimpanzee (PAN taxon) and orangutan (PONGO taxon). Evolution of baboon (PAPIO taxon) is in developmental lineage of intermediate ancestors of orangutan (PONGO taxon). Gibbons are forms which differ from their evolution roots the most. Hominids, through massive and gracile \textit{Australopithecus} forms, led simultaneously to the emergence of \textit{Pithecanthropus} whose further evolution resulted in the neanderthal form. Modern humans remained distinct from all primates due to simultaneous growth of cranial vault and height, which allowed for considerable brain development. This type of development can be regarded as a manifestation of a qualitative jump in the evolution of primates.
DOI : 10.14708/ma.v43i1.632
Classification : 00A06
Mots-clés : hominization tendencies in the primates evolution, human roots, primate evolution model 
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Zofia Sikorska-Piwowska; Marta Zalewska; Jacek Tomczyk; Antoni Leon Dawidowicz; Hanna Mańkowska-Pliszka. Hominization tendencies in the evolution of primates in multidimensional modeling. Mathematica Applicanda, Tome 43 (2015) no. 1, pp.  77-93. doi: 10.14708/ma.v43i1.632

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