DOI: Abstract: The genus Galea Rodentia, Caviidae includes five living and two extinct species of terrestrial and herbivorous cavies that inhabit grasslands and rocky scrub areas at both high and low elevations in South America.
Fossil samples from the late Pleistocene-Holocene from central-eastern Argentina have been referred to as Galea sp. However, recent studies based on large series of individuals fail to find qualitative morphological differences between G. Based on these findings, in this contribution we reviewed the taxonomic status of the fossil species G. A total of individuals of the three currently recognized subspecies of G. Nine craniodental measurements were recorded. Quantitative data were subjected to a principal component analysis PCA in order to identify the contribution of each measurement to the total variance.
Qualitative characters were evaluated through the comparisons of the diagnostic traits of G. PCA showed a high overlap of the multivariate spaces of the three subspecies studied, suggesting that they do not differ significantly in terms of cranial shape. The holotype of G.
Qualitative traits diagnostic of G. Based on both qualitative and quantitative cranial traits, we suggest that G. The morphological traits supposedly unique to G.
The large values of some quantitative cranial traits in fossil samples - compared to living ones - are reinterpreted here as an ecophenotypical response to the more severe climatic conditions of the Holocene.
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