Evolution of the vomer and its implications for cranial kinesis in Paraves [PDF]
Proceedings of the National Academy of Sciences of the United States of America, 2019 Most living birds exhibit cranial kinesis—movement between the rostrum and braincase—in which force is transferred through the palatal and jugal bars. The palate alone distinguishes the Paleognathae from the Neognathae, with cranial kinesis more developed in neognaths.
Han Hu +2 more
exaly +4 more sources
Bmc Ecology and EvolutionBackground Unenlagiine paravians are among the most relevant Gondwanan theropod dinosaur clades for understanding the origin of birds, yet their fossil record remains incomplete, with most taxa being represented by fragmentary material and/or separated ...
Matthew C. Lamanna +2 more
exaly +2 more sources
The phylogenetic affinities and morphological peculiarities of the bird-like dinosaur Borogovia gracilicrus from the Upper Cretaceous of Mongolia [PDF]
PeerJ, 2021 Borogovia gracilicrus is a small-bodied theropod dinosaur from the Maastrichtian (Upper Cretaceous) Nemegt Formation of southern Mongolia. The taxon is based on a single fragmentary specimen preserving only the distal part of the hindlimbs.
Andrea Cau, Daniel Madzia
doaj +2 more sources
Iridescent plumage in a juvenile dromaeosaurid theropod dinosaur
Acta Palaeontologica Polonica, 2023 Colour reconstructions have provided new insights into the lives of dinosaurs and other extinct animals, by predicting colouration patterns from fossilised pigment-bearing organelles called melanosomes.
ANGUS D. CROUDACE +4 more
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Shifts in stability and control effectiveness during evolution of Paraves support aerial maneuvering hypotheses for flight origins [PDF]
PeerJ, 2014 The capacity for aerial maneuvering was likely a major influence on the evolution of flying animals. Here we evaluate consequences of paravian morphology for aerial performance by quantifying static stability and control effectiveness of physical models ...
Dennis Evangelista +6 more
doaj +2 more sources
The phylogenetic affinities of the bizarre Late Cretaceous Romanian theropod Balaur bondoc (Dinosauria, Maniraptora): dromaeosaurid or flightless bird? [PDF]
PeerJ, 2015 The exceptionally well-preserved Romanian dinosaur Balaur bondoc is the most complete theropod known to date from the Upper Cretaceous of Europe. Previous studies of this remarkable taxon have included its phylogenetic interpretation as an aberrant ...
Andrea Cau, Tom Brougham, Darren Naish
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Postcranial skeletal anatomy of the holotype and referred specimens of Buitreraptor gonzalezorum Makovicky, Apesteguía and Agnolín 2005 (Theropoda, Dromaeosauridae), from the Late Cretaceous of Patagonia [PDF]
PeerJ, 2018 Here we provide a detailed description of the postcranial skeleton of the holotype and referred specimens of Buitreraptor gonzalezorum. This taxon was recovered as an unenlagiine dromaeosaurid in several recent phylogenetic studies and is the best ...
Federico A. Gianechini +3 more
doaj +2 more sources
A new paravian dinosaur from the Late Jurassic of North America supports a late acquisition of avian flight [PDF]
PeerJ, 2019 The last two decades have seen a remarkable increase in the known diversity of basal avialans and their paravian relatives. The lack of resolution in the relationships of these groups combined with attributing the behavior of specialized taxa to the base
Scott Hartman +5 more
doaj +2 more sources
The predatory ecology of Deinonychus and the origin of flapping in birds. [PDF]
PLoS ONE, 2011 Most non-avian theropod dinosaurs are characterized by fearsome serrated teeth and sharp recurved claws. Interpretation of theropod predatory ecology is typically based on functional morphological analysis of these and other physical features.
Denver W Fowler +3 more
doaj +1 more source
BMC Evolutionary Biology, 2020 Background Tooth morphology within theropod dinosaurs has been extensively investigated and shows high disparity throughout the Cretaceous. Changes or diversification in feeding ecology, i.e., adoption of an herbivorous diet (e.g., granivorous), is ...
Zhiheng Li +8 more
doaj +1 more source