Sul e a redescrição de UFAC-PV 36 contribui para o melhor conhecimento morfológico e paleobiogeográfico da espécie. A descrição morfológica comparada do sincrânio de E. barbara contribui de forma significativa para o conhecimento sobre a morfologia da espécie bem como, a descrição de caracteres intraespecíficos proporcionam caracteres mais apropriados em matrizes morfológicas, fornecendo maior robustez nas análises filogenéticas futuras. Este trabalho propõe que E. barbara não possui diferenças craniométricas estatisticamente significativas entre os biomas brasileiros, porém, E. barbara caracteriza-se aqui como uma espécie dimórfica, na qual os machos possuem estruturas cranianas relativamente maiores do que as fêmeas.Palavras-chave: Eira barbara; Mustelidae; Pleistoceno; Rio Juruá; Variação Geográfica.
ABSTRACTThe recent species Eira barbara (Mustelidae, Carnivora) has a geographic distribution from Mexico to northern Argentina. It is an important taxon to be studied as an anatomical model for the mustelids, as well as an important model for a better understanding of the diversification of the Mustelidae. Currently, the fossil record of E. barbara in South America is scarce and restricted to the Pleistocene, while the studies of these fossils frequently lack greater efforts to perform detailed morphological descriptions and paleobiogeographic studies. Besides limited studies of fossil E. barbara, it was established that the same scenario is seen for the studies on the morphology and biogeography of the species. Thus, this work proposed to: perform a review of all records of the species and, in general, to contribute to a better understanding of the sincranian morphology and the biogeographic and paleobiogeographic studies of E. barbara. In order to achieve this, the following objectives
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