Potential for Powered Flight Neared by Most Close Avialan Relatives, but Few Crossed Its Thresholds [PDF]
, 2020 Uncertainties in the phylogeny of birds (Avialae) and their closest relatives have impeded deeper understanding of early theropod flight. To help address this, we produced an updated evolutionary hypothesis through an automated analysis of the Theropod ...
Brusatte, Stephen L. +9 more
core +4 more sources
Pectoral Girdle Morphology in Early-Diverging Paravians and Living Ratites: Implications for the Origin of Flight [PDF]
, 2020 Discussions about the origin of flight almost unanimously assume that early birds positioned (and moved) their wings in the same basic manner as living flying birds, with reconstructed wings extended with the airfoil surface parallel to the ground and ...
Agnolin, Federico +3 more
core
Ontogenetic Niche Shift as a Driver of Community Structure and Diversity in Non-Avian Dinosaurs [PDF]
, 2022 As some of the most charismatic megafauna to ever walk the earth, the physiology, morphology, growth and evolution of non-avian theropods has been studied exhaustively, yet little is understood about their roles in ecosystems as juveniles.
Schroeder, Katlin
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Multiphase progenetic development shaped the brain of flying archosaurs [PDF]
, 2019 The growing availability of virtual cranial endocasts of extinct and extant vertebrates has fueled the quest for endocranial characters that discriminate between phylogenetic groups and resolve their neural significances.
Beyrand, Vincent +7 more
core +1 more source
Los Alvarezsauridae (Dinosauria, Theropoda, Coelurosauria) de América del Sur: anatomía y relaciones filogenética. [PDF]
, 2022 Fil: Meso, Jorge Gustavo. Universidad Nacional de Río Negro. Doctorado Meción Ciencias de la Tierra. Río Negro. Argentina.This Doctoral Thesis presents an exhaustive review of the Patagonian alvarezsaurids (Dinosauria, Theropoda).
Meso, Jorge Gustavo
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Hallazgos Paleontológicos en la Formación Chorrillo (Campaniano-Maastrichtiano, Cretácico Superior), Provincia de Santa Cruz, Patagonia, Argentina [PDF]
, 2019 The first fossil remains of vertebrates, invertebrates, plants and palynomorphs of the Chorrillo Formation (Austral Basin), about 30km to the SW of the town of El Calafate (Province of Santa Cruz), are described.
Agnolin, Federico +21 more
core +2 more sources
Evolution of the carnivorous dinosaurs during the Cretaceous: The evidence from Patagonia [PDF]
, 2013 Patagonia has yielded the most comprehensive fossil record of Cretaceous theropods from Gondwana, consisting of 31 nominal species belonging to singleton taxa and six families: Abelisauridae, Noasauridae, Carcharodontosauridae, Megaraptoridae nov.
Agnolín, Federico L. +4 more
core +1 more source
The Impact of Unstable Taxa in Coelurosaurian Phylogeny and Resampling Support Measures for Parsimony Analyses [PDF]
, 2020 Paleontological datasets often have large amounts of missing entries that result in multiple mostparsimonious trees. Highly incomplete and conflictive taxa produce a collapsed strict consensus andseveral methods have been developed for identifying these ...
Goloboff, Pablo Augusto, Pol, Diego
core
The last dinosaurs of Brazil: The Bauru Group and its implications for the end-Cretaceous mass extinction [PDF]
, 2017 The non-avian dinosaurs died out at the end of the Cretaceous, ~66 million years ago, after an asteroid impact. The prevailing hypothesis is that the effects of the impact suddenly killed the dinosaurs, but the poor fossil record of latest Cretaceous ...
ALVAREZ LW +119 more
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A new bird-like dinosaur from the Upper Cretaceous of Mongolia with extremely robust hands supports niche partitioning among velociraptorines [PDF]
peer reviewedDromaeosauridae is a clade of bird-like theropod dinosaurs including, among others, the genera Deinonychus and Velociraptor, and characterised by a specialised second toe bearing an enlarged and falciform ungual.
Cau, Andrea +7 more
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