Results 11 to 20 of about 118 (86)
Limb-bone scaling indicates diverse stance and gait in quadrupedal ornithischian dinosaurs. [PDF]
PLoS One, 2012 Background The most primitive ornithischian dinosaurs were small bipeds, but quadrupedality evolved three times independently in the clade. The transition to quadrupedality from bipedal ancestors is rare in the history of terrestrial vertebrate ...
Maidment SC +3 more
europepmc +2 more sources
Intraspecific Variation in the Armoured Dinosaurs (Dinosauria: Ankylosauria)
, 2015 Here I assess sources of intraspecific morphological variability in the armoured dinosaurs (Dinosauria: Ornithischia: Ankylosauria), approached from the viewpoints of ontogenetic allometry, fossil bone histology, and individual variation. Juvenile specimens of Pinacosaurus grangeri Gilmore, 1933, demonstrate strong positive allometry in features of ...
Burns, Michael Edward
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Convoluted nasal passages function as efficient heat exchangers in ankylosaurs (Dinosauria: Ornithischia: Thyreophora). [PDF]
PLoS One, 2018 Convoluted nasal passages are an enigmatic hallmark of Ankylosauria. Previous research suggested that these convoluted nasal passages functioned as heat exchangers analogous to the respiratory turbinates of mammals and birds. We tested this hypothesis by
Bourke JM, Porter WR, Witmer LM.
europepmc +2 more sources
, 2011 Morphology and function of ankylosaur dinosaur limbs are explored and analyzed using comparative morphology and finite element analysis. Reconstruction of the forelimb and posture of Pinacosaurus grangeri matches well with trackways attributed to ankylosaurs.
Sissons, Robin L.
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Palaeontology, Volume 65, Issue 3, May/June 2022., 2022 Abstract Little is known about the large‐scale evolutionary patterns of skull size relative to body size, and the possible drivers behind these patterns, in Archosauromorpha. For example, the large skulls of erythrosuchids, a group of non‐archosaurian archosauromorphs from the Early and Middle Triassic, and of theropod dinosaurs are regarded as ...
Jordan Bestwick +8 more
wiley +1 more source
Estudios Geologicos, 1999 Se describen elementos dermatoesqueléticos de un anquilosaurio procedentes del yacimiento de Fuente Espudia, cerca de Salas de los Infantes (Burgos). Los restos fósiles se localizan en arcillas rojas del Grupo Urbión, que forman parte de las facies Weald
X. Pereda Suberbiola +8 more
doaj +1 more source
Body Size Distribution of the Dinosaurs [PDF]
, 2012 PMCID: PMC3526529This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are ...
David W E Hone +11 more
core +1 more source
, 2021 We describe an isolated osteoderm from the Albian Griman Creek Formation where it is exposed near the town of Lightning Ridge in central-northern New South Wales, Australia.
Burns, Michael E +2 more
core +1 more source
, 2020 Figure 39. Strict consensus tree based on the ten equally most parsimonious trees (MPTs) generated by the new analysis. The lack of resolution lies in the topographic ambiguity of Kunbarrasaurus, Jinyunpelta and that of the four nodosaurid taxa. Overall,
Norman, David B, David B Norman
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Journal of Comparative Neurology, Volume 532, Issue 3, March 2024.Illustration of the endocranial doming, which can provide a proxy for the brain‐to‐endocranial cavity index, using the endocast of an adult of the iguanodont dinosaur Proa valdearinnoensis as an example. Abstract Although the brain fills nearly the entire cranial cavity in birds, it can occupy a small portion of it in crocodilians.
Fabien Knoll +2 more
wiley +1 more source