ECOMORFOLOGÍA DE XENARTROS EXTINTOS: ANÁLISIS DE LA MANDÍBULA CON MÉTODOS DE MORFOMETRÍA GEOMÉTRICA
2011; Asociación Paleontológica Argentina; Linguagem: Inglês
10.5710/amgh.v48i3(269)
ISSN1851-8044
Autores Tópico(s)Pleistocene-Era Hominins and Archaeology
ResumoAbstract ECOMORPHOLOGY OF EXTINCT XENARTHRANS: ANALYSIS OF THE MANDIBLE USING GEOMETRIC MORPHOMETRICS METHODS. In the past, xenarthrans had a broad morphological diversity. However, due to the fact that extant species are dissimilar to most of the extinct ones, few ecomorphological studies have been carried out on this group. The aim of this work is to infer the diet of some extinct xenarthrans species by means of taxon free shape patterns related to diet, working with a taxonomically wide comparative sample. A geometric morphometrics analysis was developed on the lateral view of mandibles of xenarthrans, ungulates and species of other orders. Combining the results of principal component and canonical variate analyses, it was possible to characterize the shape of insectivorous species, which show a high degree of homoplasy. Omnivorous species share some morphological characteristics with herbivorous species with functional canines or high quantities of fruit in their diet. Armadillos show an extremely red...
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