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A new basal rebbachisaurid (Sauropoda, Diplodocoidea) from the Early Cretaceous of the Neuquén Basin; evolution and biogeography of the group
Despite that the origin of rebbachisaurids is retrieved as Late Jurassic is not until the upper Lower Cretaceous that this group can be recognised in the fossil record. The group is geographicallyExpand
A new giant titanosaur sheds light on body mass evolution among sauropod dinosaurs
TLDR
A new giant titanosaur is described, which represents the largest species described so far and one of the most complete titanosaurs, and its inclusion in an extended phylogenetic analysis and the optimization of body mass reveals the presence of an endemic clade of giant titanosaurs inhabited Patagonia between the Albian and the Santonian. Expand
Nest Structure for Sauropods: Sedimentary Criteria for Recognition of Dinosaur Nesting Traces
Abstract Six egg-filled depressions discovered in the Upper Cretaceous Anacleto Formation (Campanian) of Patagonia, Argentina, and interpreted as dinosaur nests, provide the only known evidence ofExpand
A New Sauropodomorph Dinosaur from the Early Jurassic of Patagonia and the Origin and Evolution of the Sauropod-type Sacrum
TLDR
The dental and postcranial anatomy of Leonerasaurus supports its close affinities with basal sauropods, and shows that the characteristic sauropod body plan evolved gradually, with a step-wise pattern of character appearance. Expand
Upper Cretaceous dinosaur nesting sites of Río Negro (Salitral Ojo de Agua and Salinas de Trapalcó-Salitral de Santa Rosa), northern Patagonia, Argentina
Abstract Twenty three different sites in two areas of Rio Negro Province (Salitral Ojo de Agua and Salitral de Santa Rosa-Salinas de Trapalco), preserving eggs and eggshells from the Allen FormationExpand
A New Titanosaur Sauropod Dinosaur from the Upper Cretaceous of North Patagonia, Argentina
A new sauropod titanosaur from the Upper Cretaceous Anacleto Formation is described. Narambuenatitan palomoi gen. et sp. nov., is diagnosed by cranial and axial autapomorphies. The holotype, whichExpand
LOWER CRETACEOUS REBBACHISAURID SAUROPODS FROM CERRO AGUADA DEL LEÓN (LOHAN CURA FORMATION), NEUQUÉN PROVINCE, NORTHWESTERN PATAGONIA, ARGENTINA
Abstract We describe sauropod material from the Lower Cretaceous (Aptian-Albian) Puesto Quiroga Member of the Lohan Cura Formation, exposed at the Cerro Aguada del León locality (La Picaza area,Expand
A new peirosaurid from the Upper Cretaceous of Argentina: Implications for specimens referred to Peirosaurus torminni Price (Crocodyliformes: Peirosauridae)
TLDR
Reassignment of the Argentinian material formerly referred to Peirosaurus therefore removes one of the few specific links between the Cretaceous terrestrial biotas of Brazil and Argentina. Expand
Paleoenvironment of the Auca Mahuevo and Los Barreales sauropod Nesting-Sites (Late Cretaceous, Neuquén Province, Argentina)
Abstract Outcrops of Anacleto Formation at Auca Mahuevo nesting site (Neuquén Province, Argentina) can be divided into two main sections. The lower section (51 m), exhibits a succession of pointExpand
A new primitive Neornithischian dinosaur from the Jurassic of Patagonia with gut contents
TLDR
Despite showing a general stegosaurian appearance, the extensive phylogenetic analysis carried out depicts Isaberrysaura mollensis gen. et sp. Expand
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