ArticleJournal of the Royal Society, Interface2016
Dietary adaptions in the ultrastructure of dinosaur dentine.
Article in Journal of the Royal Society, Interface, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 18 citations in OpenAlex.
- Diet of bird-like troodontid dinosaurs: synthesis of a contentious clade.Biological reviews of the Cambridge Philosophical Society · 2026Review
- Comparative microstructural study on the teeth of Mesozoic birds and non-avian dinosaurs.Royal Society open science · 2023Article
- Evolution of amniote dentine apposition rates.Biology letters · 2022Article
- 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
- Ultramicrostructural reductions in teeth: implications for dietary transition from non-avian dinosaurs to birds.BMC evolutionary biology · 2020Article
- Consumption of crustaceans by megaherbivorous dinosaurs: dietary flexibility and dinosaur life history strategies.Scientific reports · 2017Article
Corrections and comments
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Authors and funding
8 authors at 4 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Teeth are key to understanding the feeding ecology of both extant and extinct vertebrates. Recent studies have highlighted the previously unrecognized complexity of dinosaur dentitions and how specific tooth tissues and tooth shapes differ between taxa with different diets. However, it is unknown how the ultrastructure of these tooth tissues contributes to the differences in feeding style between taxa. In this study, we use third harmonic generation microscopy and scanning electron microscopy to examine the ultrastructure of the dentine in herbivorous and carnivorous dinosaurs to understand how the structure of this tissue contributes to the overall utility of the tooth. Morphometric analyses of dentinal tubule diameter, density and branching rates reveal a strong signal for dietary preferences, with herbivorous saurischian and ornithischian dinosaurs consistently having higher dentinal tubule density than their carnivorous relatives. We hypothesize that this relates to the hardness of the dentine, where herbivorous taxa have dentine that is more resistant to breakage and wear at the dentine-enamel junction than carnivorous taxa. This study advocates the detailed study of dentine and the use of advanced microscopy techniques to understand the evolution of dentition and feeding ecology in extinct vertebrates.
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