Ontogenetic changes in the craniomandibular skeleton of the abelisaurid dinosaur Majungasaurus crenatissimus from the Late Cretaceous of Madagascar [PDF]
Acta Palaeontologica Polonica, 2016 Abelisaurid theropods were one of the most diverse groups of predatory dinosaurs in Gondwana during the Cretaceous. The group is characterized by a tall, wide skull and robust cervical region.
Nirina O. Ratsimbaholison +2 more
doaj +10 more sources
Shed teeth from Portezuelo formation at Sierra del Portezuelo reveal a higher diversity of predator theropods during Turonian-Coniacian times in northern Patagonia [PDF]
BMC Ecology and EvolutionThe study of thirty-two shed crowns from the Portezuelo Formation (middle Turonian-late Coniacian) at the Sierra del Portezuelo locality, reveals six distinct tooth morphotypes identified through cladistic, discriminant, and cluster analyses.
Jorge Gustavo Meso +8 more
doaj +2 more sources
Dinosaur speed demon: the caudal musculature of Carnotaurus sastrei and implications for the evolution of South American abelisaurids. [PDF]
PLoS ONE, 2011 In the South American abelisaurids Carnotaurus sastrei, Aucasaurus garridoi, and, to a lesser extent Skorpiovenator bustingorryi, the anterior caudal ribs project at a high dorsolateral inclination and have interlocking lateral tips.
W Scott Persons, Philip J Currie
doaj +2 more sources
Macroevolutionary trends in Ceratosauria body size: insights of phylogenetic comparative methods [PDF]
BMC Ecology and EvolutionPatterns of body size evolution in dinosaurs are relevant for understanding the evolutionary trends that have shaped the disparity of phenotypes observed in the fossil record.
Enzo E. Seculi Pereyra +2 more
doaj +2 more sources
Multivariate and Cladistic Analyses of Isolated Teeth Reveal Sympatry of Theropod Dinosaurs in the Late Jurassic of Northern Germany. [PDF]
PLoS ONE, 2016 Remains of theropod dinosaurs are very rare in Northern Germany because the area was repeatedly submerged by a shallow epicontinental sea during the Mesozoic.
Oliver Gerke, Oliver Wings
doaj +2 more sources
An Unusual New Theropod with a Didactyl Manus from the Upper Cretaceous of Patagonia, Argentina. [PDF]
PLoS One, 2016 Background Late Cretaceous terrestrial strata of the Neuquén Basin, northern Patagonia, Argentina have yielded a rich fauna of dinosaurs and other vertebrates. The diversity of saurischian dinosaurs is particularly high, especially in the late Cenomanian-
Apesteguía S +3 more
europepmc +9 more sources
The dentary of Australovenator wintonensis (Theropoda, Megaraptoridae); implications for megaraptorid dentition [PDF]
PeerJ, 2015 Megaraptorid theropods were an enigmatic group of medium-sized predatory dinosaurs, infamous for the hypertrophied claw on the first manual digit. Megaraptorid dentition is largely restricted to isolated teeth found in association with skeletal parts ...
Matt A. White +4 more
doaj +3 more sources
Publicación Electrónica de la Asociación Paleontológica Argentina, 2022 The Cerro Overo-La Invernada area in north Patagonia has provided a rich record of Cretaceous continental tetrapods in the last two decades, mainly from the Bajo de la Carpa Formation (Upper Cretaceous, Santonian).
Federico Gianechini +3 more
doaj +3 more sources
A Basal Lithostrotian Titanosaur (Dinosauria: Sauropoda) with a Complete Skull: Implications for the Evolution and Paleobiology of Titanosauria. [PDF]
PLoS One, 2016 We describe Sarmientosaurus musacchioi gen. et sp. nov., a titanosaurian sauropod dinosaur from the Upper Cretaceous (Cenomanian - Turonian) Lower Member of the Bajo Barreal Formation of southern Chubut Province in central Patagonia, Argentina.
Martínez RD +7 more
europepmc +6 more sources
The "χ" of the Matter: Testing the Relationship between Paleoenvironments and Three Theropod Clades. [PDF]
PLoS One, 2016 The view of spinosaurs as dinosaurs of semi-aquatic habits and strongly associated with marginal and coastal habitats are deeply rooted in both scientific and popular knowledge, but it was never statistically tested.
Sales MA +4 more
europepmc +3 more sources