Results 61 to 70 of about 731 (174)
Journal of Comparative Neurology, Volume 534, Issue 7, July 2026.The phylogenetic position of oviraptorosaurs close to birds makes them a key group for understanding the acquisition of avian senses. Here, we describe the first inner ear endocasts for caenagnathids, a major subclade of oviraptorosaurs, which demonstrates that labyrinth morphology varied more than expected within oviraptorosaurs.
Kayla D. Bazzana‐Adams +2 more
wiley +1 more source
Papers in Palaeontology, Volume 12, Issue 3, May/June 2026.Abstract Dysalotosaurus lettowvorbecki (Ornithopoda, Dinosauria) is a small‐sized dryosaurid iguanodontian known from various isolated remains collected from the Tendaguru Formation (Upper Jurassic, Tanzania). Micro‐computed tomography of a small individual encased in a block offered a unique opportunity to describe c.
Riccardo Rocchi +3 more
wiley +1 more source
The vertebrate fauna from the stipite layers of the Grands Causses (Middle Jurassic, France)
Frontiers in Ecology and Evolution, 2014 The stipites are Bathonian (Middle Jurassic) coals that formed in an everglades-like environment and are now exposed in the Grands Causses (southern France).
Fabien eKnoll +3 more
doaj +1 more source
The wings before the bird: an evaluation of flapping-based locomotory hypotheses in bird antecedents [PDF]
PeerJ, 2016 Background: Powered flight is implicated as a major driver for the success of birds. Here we examine the effectiveness of three hypothesized pathways for the evolution of the flight stroke, the forelimb motion that powers aerial locomotion, in a ...
T. Alexander Dececchi +2 more
doaj +2 more sources
Palaeontology, Volume 69, Issue 3, 2026.Abstract Recent work has suggested that the presence of extraoral soft tissues (‘lips’), in the form of labial scales in theropod dinosaurs, could be inferred based on: anteroposteriorly distributed foramina in the rostral bones, similar to extant lepidosaurs; vertically projected teeth; uniform enamel thickness in maxillary teeth; and an allometric ...
Rafael Terras +9 more
wiley +1 more source
The first juvenile dromaeosaurid (Dinosauria: Theropoda) from Arctic Alaska.
PLoS ONE, 2020 Compared to the osteological record of herbivorous dinosaurs from the Late Cretaceous Prince Creek Formation of northern Alaska, there are relatively fewer remains of theropods.
Alfio Alessandro Chiarenza +5 more
doaj +1 more source
Lower rotational inertia and larger leg muscles indicate more rapid turns in tyrannosaurids than in other large theropods [PDF]
PeerJ, 2019 Synopsis Tyrannosaurid dinosaurs had large preserved leg muscle attachments and low rotational inertia relative to their body mass, indicating that they could turn more quickly than other large theropods.
Eric Snively +11 more
doaj +2 more sources
Papers in Palaeontology, Volume 12, Issue 2, March/April 2026.Abstract The most complete record of the earliest dinosaur lineages is from the Carnian from the higher latitudes of Pangea (e.g. present‐day Brazil, Argentina), but dinosaurian assemblages from the upper stages of the Upper Triassic are better known from the low latitudes of Pangea (present day southwestern USA).
Simba Srivastava, Sterling J. Nesbitt
wiley +1 more source
Tunasniyoj, a dinosaur tracksite from the Jurassic-Cretaceous boundary of Bolivia
Anais da Academia Brasileira de Ciências, 2011 Here we report a superbly preserved and profusely represented five-ichnotaxa dinosaur track assemblage near Icla village, 100 km southeast of Sucre, Bolivia.
Sebastián Apesteguía, Pablo A. Gallina
doaj +1 more source
Palaeontology, Volume 69, Issue 2, 2026.Abstract There is a growing consensus that pterosaurs and the flightless Lagerpetidae are closely related. This relationship is supported by apomorphies throughout the skeleton, including endocranial character states such as a well‐developed floccular fossa and a tall anterior semicircular canal. Our knowledge of lagerpetid anatomy has been improved by
Lísie V.S. Damke +6 more
wiley +1 more source