ArticleScientific reports2015
Evolution and Function of Dinosaur Teeth at Ultramicrostructural Level Revealed Using Synchrotron Transmission X-ray Microscopy.
Article in Scientific reports, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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13 citing papers in PubMed, 45 citations in OpenAlex.
- Diet of bird-like troodontid dinosaurs: synthesis of a contentious clade.Biological reviews of the Cambridge Philosophical Society · 2026Review
- The diet of early birds based on modern and fossil evidence and a new framework for its reconstruction.Biological reviews of the Cambridge Philosophical Society · 2021Review
- Convergent dental adaptations in the serrations of hypercarnivorous synapsids and dinosaurs.Biology letters · 2020Article
- Investigation of Bone Growth in Additive-Manufactured Pedicle Screw Implant by Using Ti-6Al-4V and Bioactive Glass Powder Composite.International journal of molecular sciences · 2020Article
- Ultramicrostructural reductions in teeth: implications for dietary transition from non-avian dinosaurs to birds.BMC evolutionary biology · 2020Article
- Calcitriol exerts a mineralization-inductive effect comparable to that of vitamin C in cultured human periodontium cells.American journal of translational research · 2019Article
- Multidecadally resolved polarity oscillations during a geomagnetic excursion.Proceedings of the National Academy of Sciences of the United States of America · 2018Article
- Neutron scanning reveals unexpected complexity in the enamel thickness of an herbivorous Jurassic reptile.Journal of the Royal Society, Interface · 2018Article
- Article
- Fast Projection Matching for X-ray Tomography.Scientific reports · 2017Article
- Evidence of preserved collagen in an Early Jurassic sauropodomorph dinosaur revealed by synchrotron FTIR microspectroscopy.Nature communications · 2017Article
- Article
- Dietary adaptions in the ultrastructure of dinosaur dentine.Journal of the Royal Society, Interface · 2016Article
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12 authors at 7 institutions in 3 countries.
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No grant is acknowledged in the PubMed record.
Abstract
The relationship between tooth form and dietary preference is a crucial issue in vertebrate evolution. However, the mechanical properties of a tooth are influenced not only by its shape but also by its internal structure. Here, we use synchrotron transmission X-ray microscopy to examine the internal microstructures of multiple dinosaur teeth within a phylogenetic framework. We found that the internal microstructures of saurischian teeth are very different from advanced ornithischian teeth, reflecting differences in dental developmental strategies. The three-tissue composition (enamel-mantle dentin-bulk dentin) near the dentinoenamel junction (DEJ) in saurischian teeth represents the primitive condition of dinosaur teeth. Mantle dentin, greatly reduced or absent from DEJ in derived ornithischian teeth, is a key difference between Saurischia and Ornithischia. This may be related to the derived herbivorous feeding behavior of ornithischians, but interestingly, it is still retained in the herbivorous saurischian sauropods. The protective functions of mantle dentin with porous microstructures between enamel and bulk dentin inside typical saurischian teeth are also discussed using finite-element analysis method. Evolution of the dental modifications in ornithischian dinosaurs, with the absence of mantle dentin, may be related to changes in enamel characteristics with enamel spindles extending through the DEJ.
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