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Body mass estimation in Early Miocene native South American ungulates: a predictive equation based on 3D landmarks
TLDR
South American native ungulates include extinct taxa that evolved within the geographical context given by the isolation of South America during most of the Cenozoic and are particularly interesting for paleobiological studies due to their diversity, richness and quality of preservation of the specimens. Expand
Dental occlusal surface area in relation to body mass, food habits and other biological features in fossil xenarthrans
Abstract. The Xenarthra includes the most intriguing mammals from the Cenozoic of South America: the glyptodonts (Cingulata) and the ground sloths (Tardigrada). Their masticatory apparatuses areExpand
Evaluating Habitats and Feeding Habits Through Ecomorphological Features in Glyptodonts (Mammalia, Xenarthra)
TLDR
The analyses included estimation of body masses and three variables: relative muzzle width (RMW), hypsodonty index (HI), and dental occlusal surface area (OSA) that allowed discriminating feeding niche partitioning in glyptodonts. Expand
The Forelimb of Early Miocene Sloths (Mammalia, Xenarthra, Folivora): Morphometrics and Functional Implications for Substrate Preferences
TLDR
The results suggest that fossil sloths have a different functional pattern of forelimb use than that of extant ones, probably more similar to vermilinguas and pangolins, including putative good digging capabilities and/or semiarboreal habits. Expand
Skull Geometric Morphometrics and Paleoecology of Santacrucian (Late Early Miocene; Patagonia) Native Ungulates (Astrapotheria, Litopterna, and Notoungulata)
TLDR
Three orders of South American extinct native ungulates recorded from the Santa Cruz Formation along the Atlantic coast of Patagonia are recorded, allowing characterization of notoungulates mainly as open habitats dwellers, with some taxa foraging on grass, and others on grass and leaves. Expand
SOCIAL BEHAVIOR AND GROUP FORMATION IN THE COYPU (MYOCASTOR COYPUS) IN THE ARGENTINEAN PAMPAS
TLDR
This study confirms gregarious habits and a polygynous mating system for the species and provides the first report of the existence of some cooperative behaviors in native populations of the coypu. Expand
On the Evolution of Large Size in Mammalian Herbivores of Cenozoic Faunas of Southern South America
TLDR
The impact of the mega-mammal extinction on the post-Pleistocene evolution of plant communities has not been studied for South America, but it is clear that it produced an enormous ecological gap in the herbivorous guild. Expand
A baseline paleoecological study for the Santa Cruz Formation (late–early Miocene) at the Atlantic coast of Patagonia, Argentina
TLDR
This study attempts to reconstruct the trophic structure of the Santacrucian mammalian community with precise stratigraphic control, and predicts an imbalance in both CB and PLC faunas which can be seen by comparing the secondary productivity of the ecosystem and the energetic requirements of the carnivores in it. Expand
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