Results 51 to 60 of about 557 (139)
New theropod dinosaur from the Upper Cretaceous of Patagonia sheds light on the paravian radiation in Gondwana [PDF]
, 2020 The fossil record of basal paravians in Gondwana is still poorly known, being limited to the Cretaceous unenlagiids from South America and the problematic Rahonavis from Madagascar.
Agnolin, Federico +3 more
core +1 more source
Diet of bird‐like troodontid dinosaurs: synthesis of a contentious clade
Biological Reviews, EarlyView.ABSTRACT Troodontidae is a clade of small‐to medium‐sized maniraptoran theropods that mainly lived in Laurasia (modern Asia, North America and Europe) during the Jurassic and Cretaceous periods and are believed to have had a variety of diets. The uniqueness of troodontid teeth suggests that they diverged from the typical flesh‐based diet of non‐avian ...
Yui Chi Fan +2 more
wiley +1 more source
The effects of the spreading of the Central Atlantic during the Middle Jurassic on dinosaur faunas [PDF]
, 2012 The spreading of the Central Atlantic is a complex series of events that include a ridge jump to the east and a ridge jump to the west at c. 170Ma and c. 162Ma respectively.
Clark, N.D.L.
core
The impact of poor sampling of polymorphism on cladistic analysis
Cladistics, Volume 32, Issue 3, Page 317-334, June 2016., 2016 Abstract Despite its ubiquity in the natural world, polymorphism is commonly disregarded or poorly sampled in phylogenetic analyses due to deliberate sampling strategy, inadequate sampling effort and limited specimen availability. Poor sampling of intraspecific variation engenders differential sampling of morphs within polymorphic species, which could ...
Akinobu Watanabe
wiley +1 more source
New perspectives on body size and shape evolution in dinosaurs
Biological Reviews, Volume 100, Issue 5, Page 1829-1860, October 2025.ABSTRACT Diversity in the body shapes and sizes of dinosaurs was foundational to their widespread success during the Mesozoic era. The ability to quantify body size and form reliably is therefore critical to the study of dinosaur biology and evolution.
Matthew Dempsey +4 more
wiley +1 more source
The geometry of taking flight: Limb morphometrics in Mesozoic theropods
Journal of Morphology, Volume 276, Issue 2, Page 152-166, February 2015., 2015 ABSTRACT Theropoda was one of the most successful dinosaurian clades during the Mesozoic and has remained a dominant component of faunas throughout the Cenozoic, with nearly 10,000 extant representatives. The discovery of Archaeopteryx provides evidence that avian theropods evolved at least 155 million years ago and that more than half of the tenure of
Brandon P. Hedrick +4 more
wiley +1 more source
Oviraptorosauria: Morphology, Phylogeny, and Endocranial Evolution [PDF]
, 2011 Oviraptorosauria, an extinct lineage of coelurosaurian dinosaurs from the Cretaceous of Asia and North America, includes some of the most morphologically distinctive theropod taxa yet known.
Balanoff, Amy
core +2 more sources
Journal of Anatomy, Volume 247, Issue 3-4, Page 790-818, September/October 2025.A combined approach of osteology and histology was used to examine the cheek regions of dinosaurs. Strong evidence was found for a soft tissue in this region connecting the zygoma to the mandible, here named the ‘exoparia’. Abstract Unlike mammals, reptiles typically lack large muscles and ligaments that connect the zygoma to the mandible.
Henry S. Sharpe +7 more
wiley +1 more source
Evolution of antero-posterior patterning of the limb: insights from the chick [PDF]
, 2017 The developing limbs of chicken embryos have served as pioneering models for understanding pattern formation for over a century. The ease with which chick wing and leg buds can be experimentally manipulated, while the embryo is still in the egg, has ...
Towers, M.
core +1 more source
Journal of Morphology, Volume 285, Issue 6, June 2024.We describe the nearly complete digital endocasts of the brain and bony labyrinth of the neotype specimen of Lithornis vulturinus, a palaeognathous bird from the early Eocene of Europe. Lithornis may provide the clearest insights to date into the neuroanatomy of the ancestral crown bird, combining an ancestrally unflexed brain with a caudally oriented ...
Klara E. Widrig +2 more
wiley +1 more source