Results 51 to 60 of about 2,665 (231)
Evolution &Development, Volume 25, Issue 3, Page 209-225, May 2023., 2023 We contrast the morphology of calvarial sutures through ontogeny and evolution in iguanodontian dinosaurs to test whether the evolution of cranial crests impacted the mechanical loading of the skull. We found that increased suture complexity coincided with crest evolution, and corresponding modifications to their skull altered stress distribution while
Thomas W. Dudgeon, David C. Evans
wiley +1 more source
The Anatomical Record, Volume 305, Issue 10, Page 2353-2414, October 2022., 2022 Abstract Once known solely from dental material and thought to represent an early ornithischian dinosaur, the early‐diverging pseudosuchian Revueltosaurus callenderi is described from a minimum of 12 skeletons from a monodominant bonebed in the upper part of the Chinle Formation of Arizona.
William G. Parker +7 more
wiley +1 more source
An exceptionally preserved armored dinosaur reveals the morphology and allometry of osteoderms and their horny epidermal coverings [PDF]
PeerJ, 2017 Although the evolution and function of “exaggerated” bony projections in ornithischian dinosaurs has been subject to significant debate recently, our understanding of the structure and morphology of their epidermal keratinized coverings is greatly ...
Caleb M. Brown
doaj +2 more sources
The Anatomical Record, Volume 305, Issue 10, Page 2766-2790, October 2022., 2022 Living crocodylians are 1 of only 3 groups of vertebrates that evolve an ossified secondary palate. We study the palatal anatomy of fossil crocodylians and its broader implications for the phylogenetics and palaeoecology of the group using micro‐CT data.
Kathleen N. Dollman, Jonah N. Choiniere
wiley +1 more source
Jaw Mechanics in Basal Ceratopsia (Ornithischia, Dinosauria) [PDF]
The Anatomical Record, 2009 AbstractCeratopsian dinosaurs were a dominant group of herbivores in Cretaceous terrestrial ecosystems. We hypothesize that an understanding of the feeding system will provide important insight into the evolutionary success of these animals. The mandibular mechanics of eight genera of basal ceratopsians was examined to understand the variability in ...
Kyo, Tanoue +3 more
openaire +2 more sources
Asociacion faunistica de vertebrados mesozoicos de la localidad de Galve (Teruel)
Estudios Geologicos, 2002 Los sedimentos del Tithónico-Barremiense de la Cuenca Ibérica aflorantes en los alrededores de la localidad de Galve (Teniel), son particularmente ricos en restos de vertebrados mesozoicos.
B. Sánchez Hemández
doaj +1 more source
Dental microwear reveals mammal-like chewing in the neoceratopsian dinosaur Leptoceratops gracilis [PDF]
PeerJ, 2016 Extensive oral processing of food through dental occlusion and orbital mandibular movement is often cited as a uniquely mammalian trait that contributed to their evolutionary success.
Frank J. Varriale
doaj +2 more sources
The Rhabdodontidae (Dinosauria, Ornithischia), an enigmatic dinosaur group endemic to the Late Cretaceous European Archipelago [PDF]
Fossil Record, 2023 The Rhabdodontidae was one of the most important dinosaur groups inhabiting the Late Cretaceous European Archipelago. Currently, the clade comprises nine species within six genera, which have been found in southern France, northern Spain, eastern Austria,
Felix J. Augustin +2 more
doaj +3 more sources
A nest ofProtoceratops andrewsi(Dinosauria, Ornithischia)
Journal of Paleontology, 2011 A remarkable specimen of the small neoceratopsian dinosaurProtoceratops andrewsi(Late Cretaceous, Mongolia) reveals the first nest of this genus, complete with fifteen juveniles. The relatively large size of the individuals and their advanced state of development suggests the possibility thatProtoceratopsjuveniles remained and grew in their nests ...
David E. Fastovsky +5 more
openalex +4 more sources
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