Yuxisaurus represents the first unambiguous armored dinosaur to be recovered from the Lower Jurassic of Asia, confirming the rapid geographic spread and diversification of the armored dinosaurs throughout the northern hemisphere early in their evolution.
Paul C Sereno, Nathan Myhrvold ... Lauren L Conroy
A digital flesh model of the sail-backed dinosaur Spinosaurus was tested and performed very poorly in water, favoring the view of this dinosaur as a two-legged, wading ambush predator of large fish in shallow waterways and not an aquatic dinosaur.
Consistent bimodal variations in the femoral morphology of various modern amniotes and a remarkably large herd of coeval fossil non-avian theropods evidences sexual dimorphism in dinosaurs.
Viktor J Radermacher, Vincent Fernandez ... Jonah N Choiniere
A new specimen of Heterodontosaurus elucidates how ornithischian dinosaurs evolved a body plan substantially different from that of other dinosaurs and what these differences meant for their breathing.
Computed tomography data reveal large and adult-looking inner ears in very young individuals of the long-necked dinosaur Europasaurus holgeri suggesting precociality in this dwarfed island dweller from the Late Jurassic of Germany.
Studying fossils from a mass-mortality event reveals evidence for sexual dimorphism and, unusually, equal numbers of males and females in a herd of dinosaurs.
Sergio Álvarez-Parra, Ricardo Pérez-de la Fuente ... Xavier Delclòs
The most prolific and oldest locality in which a rich dinosaur bonebed and fossiliferous amber have been found in association is revealed, allowing the reconstruction of an ancient terrestrial ecosystem with a detail and accuracy reached only exceptionally in palaeontology.
Akinobu Watanabe, Amy M Balanoff ... Mark A Norell
More integrated brains in crown birds evolved through a mosaic assembly of new evolutionary and developmental dynamics across neuroanatomical regions that occurred along the dinosaur-bird transition.
The eggshells of palaeognath birds (e.g. ostrich, moa, kiwi, emu) have diverse homology and convergent features, and are useful modern analogues for the evolution of non-avian dinosaur eggshells.
