First definitive record of Abelisauridae (Theropoda: Ceratosauria) from the Cretaceous Bahariya Formation, Bahariya Oasis, Western Desert of Egypt [PDF]
Royal Society Open Science, 2022 Numerous non-avian theropod dinosaur fossils have been reported from the Upper Cretaceous (Cenomanian) Bahariya Formation, Bahariya Oasis, Western Desert of Egypt, but unambiguous materials of Abelisauridae have yet to be documented.
Belal S. Salem +7 more
doaj +4 more sources
Morphology of the maxilla informs about the type of predation strategy in the evolution of Abelisauridae (Dinosauria: Theropoda) [PDF]
Scientific ReportsAbelisauridae is a clade of theropods distinguished by short, ornamented skulls and strongly reduced forelimbs. They represented the most abundant predatory dinosaurs in Gondwana during the Cretaceous.
Enzo E. Seculi Pereyra +5 more
doaj +4 more sources
Osteology of the axial skeleton of Aucasaurus garridoi: phylogenetic and paleobiological inferences [PDF]
PeerJ, 2023 Aucasaurus garridoi is an abelisaurid theropod from the Anacleto Formation (lower Campanian, Upper Cretaceous) of Patagonia, Argentina. The holotype of Aucasaurus garridoi includes cranial material, axial elements, and almost complete fore- and hind ...
Mattia Antonio Baiano +4 more
doaj +3 more sources
A Late Cretaceous dinosaur and crocodyliform faunal association-based on isolate teeth and osteoderms-at Cerro Fortaleza Formation (Campanian-Maastrichtian) type locality, Santa Cruz, Argentina. [PDF]
PLoS ONE, 2021 The Late Cretaceous dinosaur record in southern South America has been improved recently; particularly with findings from Chorrillo and Cerro Fortaleza formations, both bearing ankylosaur remains, a clade that was not previously recorded in the Austral ...
Ariana Paulina-Carabajal +4 more
doaj +2 more sources
New information on paleopathologies in non-avian theropod dinosaurs: a case study on South American abelisaurids [PDF]
BMC Ecology and EvolutionStudies on pathological fossil bones have allowed improving the knowledge of physiology and ecology, and consequently the life history of extinct organisms.
Mattia A. Baiano +3 more
doaj +2 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
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