Results 201 to 210 of about 2,665 (231)
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2022
ORNITHISCHIA Seeley, 1888 DESCRIPTION With the exception of thyreophorans, the ornithischian dinosaurs of Angeac-Charente are mainly represented by isolated teeth. Most of these teeth show evidence of pre-burial transport and are either broken or eroded.
Allain, Ronan +12 more
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ORNITHISCHIA Seeley, 1888 DESCRIPTION With the exception of thyreophorans, the ornithischian dinosaurs of Angeac-Charente are mainly represented by isolated teeth. Most of these teeth show evidence of pre-burial transport and are either broken or eroded.
Allain, Ronan +12 more
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2018
Ornithischians The J/K interval decline in subsampled diversity remains constant and recognisable throughout publication history, with this stability suggesting a real biological signal and not a publication artefact (Tennant, Mannion & Upchurch, 2016b).
Jonathan P. Tennant +2 more
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Ornithischians The J/K interval decline in subsampled diversity remains constant and recognisable throughout publication history, with this stability suggesting a real biological signal and not a publication artefact (Tennant, Mannion & Upchurch, 2016b).
Jonathan P. Tennant +2 more
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2022
Ornithischia Seeley, 1887 Ornithopoda Marsh, 1881 Iguanodontia Baur, 1891 sensu Madzia et al., 2018 Ankylopollexia Sereno, 1986 sensu Sereno, 1998 Styracosterna Sereno, 1997 sensu Sereno ...
Samathi, Adun, Suteethorn, Suravech
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Ornithischia Seeley, 1887 Ornithopoda Marsh, 1881 Iguanodontia Baur, 1891 sensu Madzia et al., 2018 Ankylopollexia Sereno, 1986 sensu Sereno, 1998 Styracosterna Sereno, 1997 sensu Sereno ...
Samathi, Adun, Suteethorn, Suravech
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2021
Ornithischia The earliest known (Jurassic) ornithischians were small, bipedal cursors with long, muscular cantilever tails and a herbivorous diet (Fig. 25A). They processed food orally using a combination of orthal pulping and irregular occlusal shearing; they were also narrowsnouted (selective) feeders capable of utilizing more readily digested ...
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Ornithischia The earliest known (Jurassic) ornithischians were small, bipedal cursors with long, muscular cantilever tails and a herbivorous diet (Fig. 25A). They processed food orally using a combination of orthal pulping and irregular occlusal shearing; they were also narrowsnouted (selective) feeders capable of utilizing more readily digested ...
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Phylogeny of the ankylosaurian dinosaurs (Ornithischia: Thyreophora)
Journal of Systematic Palaeontology, 2011Ankylosauria is a diverse clade of quadrupedal ornithischian dinosaurs whose remains are known from Middle Jurassic to latest Cretaceous sediments worldwide. Despite a long history of research, ankylosaur interrelationships remain poorly resolved and existing cladistic analyses suffer from limited character and taxon sampling. Here, we present the most
Thompson, Richard +3 more
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Notes on pachycephalosaurs (Ornithischia)
Journal of Paleontology, 1989Previously undescribed specimens ofPachycephalosaurus wyomingensisallow partial description of the anterior braincase and a preliminary examination of change of dome shape with age. The two morphs of dome shape recognized in adults are also present in juvenile specimens with dome lengths half that of mature adults.
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Pachycephalosaur paleoneurology (Archosauria: Ornithischia)
Journal of Vertebrate Paleontology, 1989ABSTRACT Pachycephalosaur endocranial casts display a distinctive suite of traits that include large divergent olfactory bulbs, large olfactory nerves, short thick olfactory tracts, a moderately expanded cerebrum not separated from optic lobes and cerebellum dorsally, steep cranial flexure, and reduced pontine flexure.
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Systematics and phylogeny of Stegosauria (Dinosauria: Ornithischia)
Journal of Systematic Palaeontology, 2008Synopsis Stegosauria is a clade of ornithischian dinosaurs characterised by a bizarre array of dermal armour extending, in two parasagittal rows, from the cervical region to the end of the tail. Although Stegosaurus is one of the most familiar of all dinosaurs, little is known regarding the evolutionary history of this clade.
Maidment, Susannah +3 more
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Adaptive features of protoceratopoids (Ornithischia: Neoceratopsia)
Paleontological Journal, 2008The analysis of some morphological characteristics of protoceratopoid skeletons, the extent of mobility of the vertebral column, and the probable adaptive significance of these features suggest that Bagaceratops had a mostly aquatic mode of life, Protoceratops was semiaquatic, Udanoceratops was facultatively aquatic, and Leptoceratops was predominantly
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