Species distribution models (SDMs) are helpful for understanding actual and potential
biogeographical traits of organisms. These models have recently started to be applied in the …

The present work concerns xenarthrans from the collection of Santiago (Kaspar Jakob) Roth
(1850–1924) housed at the Palaeontological Institute and Museum of the University of …

The xenarthrans are the only group of mammals that originated in South America; there are
31 living species: six sloths, four anteaters, and 21 armadillos. In Argentina, 18 species of …

The Xenarthra, which are endemic to the Americas, consist of two distinct clades, the Pilosa
(anteaters and sloths) and the Cingulata (armadillos). The association between xenarthrans …

Background Comparative genomic data among organisms allow the reconstruction of their
phylogenies and evolutionary time scales. Molecular timings have been recently used to …

A revision of Peruvian Xenarthra and the discovery of new specimens have increased our
knowledge of the Order in this country. About thirty sites from three geographic regions …

Among the several positive developments in xenarthran studies over the past 20 years have
been the training of and active participation by many new researchers, prospecting of …

Climatic and environmental changes, as well as human action, have been cited as potential
causes for the extinction of megafauna in South America at the end of the Pleistocene …

Extant species of Xenarthra represent a severely restricted sample of the total diversity
achieved by the group. Given their shared history, the extant representatives of the three …

Armadillos, sloths and anteaters represent a small fragment of a much more diverse fossil
assemblage of xenarthrans that includes bizarre forms such as the armored glyptodonts and …