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We present here a natural cranial endocast assigned to an abelisaurid theropod found in Cretaceous rocks of the outcropping Bajo de la Carpa Formation (Santonian) in Neuquén Province, Northern Patagonia, Argentina. The ...

The New World suboscines (Passeriformes and Tyrannides) are one of the biggestendemic vertebrate radiations in South America, including the families Furnariidaeand Tyrannidae. Avian brain morphology is a reliable proxy t...

The endocranial morphology of Secernosaurus koerneri (= Kritosaurus australis junior synonym), a hadrosaurid from the Upper Cretaceous of Argentina, was studied using latex and digital endocasts based on three fragmentar...

Among the Middle Pleistocene African fossils that are central to discussions about the evolution of Homo sapiens is the partial cranium from Florisbad, South Africa. The fossil, dated to MIS 8 (300–243 ka BP), combines...

Brain morphological variation is analysed through virtual endocasts in a highly diversified clade of caviomorph rodents belonging to the family Echimyidae. Diversification in brain size and shape is explored through geom...

THE study of Gondwanan non-avian theropods has beenoutstandingly prolific in the last three decades and hasshown that the taxonomic and morphological diversity ofthe group is comparable to that of Laurasia. The MesozoicG...

From an osteological perspective, the secondary aquatic adapta- tions of vertebrates are well understood; from a soft tissue one, less so. Here, we use an ancient group of crocodylomorphs, Thalattosuchia, as an exemplar ...

Los Metriorhynchidae fueron los únicos Crocodylomorpha con un estilo de vida marino pelágico. Relacionado con este estilo de vida, su peculiar plan corporal permite diferenciarlos claramente de los demás Crocodylomorp...

The ossified ethmoidal elements of Sinraptor dongi Currie and Zhao (IVPP 10600) are U-shaped, and the frontal roofs the olfactory tract and cavities. When the ethmoidal ossification is placed in anatomical position in th...

El presente trabajo de Tesis Doctoral tiene como objetivo el análisis anatómico de restos inéditos de serpientes del Cretácico y Paleógeno de Argentina, así como la revisión actualizada de la distribución espacia...

Palaeoneurological analysis is a useful tool for evolutionary inferences in diverse vertebrate groups, but such studies are scarce regarding the South American Quaternary megamammal fauna. Particularly in xenarthrans, st...