Digital preparation and osteology of the skull of Lesothosaurus diagnosticus (Ornithischia: Dinosauria) [PDF]
PeerJ, 2015 Several skulls of the ornithischian dinosaur Lesothosaurus diagnosticus (Lower Jurassic, southern Africa) are known, but all are either incomplete, deformed, or incompletely prepared.
Laura B. Porro +2 more
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Multiple optimality criteria support Ornithoscelida [PDF]
Royal Society Open Science, 2017 A recent study of early dinosaur evolution using equal-weights parsimony recovered a scheme of dinosaur interrelationships and classification that differed from historical consensus in a single, but significant, respect; Ornithischia and Saurischia were ...
Luke A. Parry +2 more
doaj +5 more sources
The enamel microstructure of Manidens condorensis: New hypotheses on the ancestral state and evolution of enamel in Ornithischia [PDF]
Acta Palaeontologica Polonica, 2020 Previous studies on enamel microstructure in Ornithischia have focused on derived lineages of this clade based on species from the northern hemisphere.
Marcos G. Becerra, Diego Pol
doaj +3 more sources
A new, ‘hip’ way to breathe [PDF]
eLife, 2021 Ornithischians, one of the three major groups of dinosaurs, developed a unique mechanism to ensure airflow in the lungs.
Marc R Spencer
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Statistical evaluation of character support reveals the instability of higher-level dinosaur phylogeny [PDF]
Scientific Reports, 2023 The interrelationships of the three major dinosaur clades (Theropoda, Sauropodomorpha, and Ornithischia) have come under increased scrutiny following the recovery of conflicting phylogenies by a large new character matrix and its extensively modified ...
David Černý, Ashley L. Simonoff
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A new Heterodontosaurus specimen elucidates the unique ventilatory macroevolution of ornithischian dinosaurs [PDF]
eLife, 2021 Ornithischian dinosaurs were ecologically prominent herbivores of the Mesozoic Era that achieved a global distribution by the onset of the Cretaceous. The ornithischian body plan is aberrant relative to other ornithodiran clades, and crucial details of ...
Viktor J Radermacher +8 more
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Neuroanatomy of the late Cretaceous Thescelosaurus neglectus (Neornithischia: Thescelosauridae) reveals novel ecological specialisations within Dinosauria [PDF]
Scientific Reports, 2023 Ornithischian dinosaurs exhibited a diversity of ecologies, locomotory modes, and social structures, making them an ideal clade in which to study the evolution of neuroanatomy and behaviour. Here, we present a 3D digital reconstruction of the endocranial
David J. Button, Lindsay E. Zanno
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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
Jason M Bourke +2 more
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Integumentary structure and composition in an exceptionally well-preserved hadrosaur (Dinosauria: Ornithischia) [PDF]
PeerJ, 2019 Preserved labile tissues (e.g., skin, muscle) in the fossil record of terrestrial vertebrates are increasingly becoming recognized as an important source of biological and taphonomic information.
Mauricio Barbi +7 more
doaj +3 more sources
A new styracosternan hadrosauroid (Dinosauria: Ornithischia) from the Early Cretaceous of Portell, Spain. [PDF]
PLoS ONE, 2021 A new styracosternan ornithopod genus and species is described based on the right dentary of a single specimen from the Mirambell Formation (Early Cretaceous, early Barremian) at the locality of Portell, (Castellón, Spain).
Andrés Santos-Cubedo +3 more
doaj +2 more sources