ArticleScientific reports2015
Developmental and evolutionary novelty in the serrated teeth of theropod dinosaurs.
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 30 papers.
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30 citing papers in PubMed, 74 citations in OpenAlex.
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- Functionally-Graded Serrated Fangs Allow Spiders to Mechanically Cut Silk, Carbon and Kevlar Fibers.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2024Article
- Iron-coated Komodo dragon teeth and the complex dental enamel of carnivorous reptiles.Nature ecology & evolution · 2024Article
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- Size and shape heterodonty in the early Permian synapsid Mesenosaurus efremovi.Journal of anatomy · 2024Article
- Craniodental ecomorphology of the large Jurassic ichthyosaurian Temnodontosaurus.Journal of anatomy · 2024Article
- Exceptionally rapid tooth development and ontogenetic changes in the feeding apparatus of the Komodo dragon.PloS one · 2024Article
- Comparison of Mid-Infrared Handheld and Benchtop Spectrometers to DetectBioengineering (Basel, Switzerland) · 2023Article
- Comparative microstructural study on the teeth of Mesozoic birds and non-avian dinosaurs.Royal Society open science · 2023Article
- Permian hypercarnivore suggests dental complexity among early amniotes.Nature communications · 2022Article
- Groovy and Gnarly: Surface Wrinkles as a Multifunctional Motif for Terrestrial and Marine Environments.Integrative and comparative biology · 2022Article
- Histology and μCT reveal the unique evolution and development of multiple tooth rows in the synapsid Endothiodon.Scientific reports · 2021Article
- Convergent dental adaptations in the serrations of hypercarnivorous synapsids and dinosaurs.Biology letters · 2020Article
- Ultramicrostructural reductions in teeth: implications for dietary transition from non-avian dinosaurs to birds.BMC evolutionary biology · 2020Article
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Authors and funding
8 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Tooth morphology and development can provide valuable insights into the feeding behaviour and evolution of extinct organisms. The teeth of Theropoda, the only clade of predominantly predatory dinosaurs, are characterized by ziphodonty, the presence of serrations (denticles) on their cutting edges. Known today only in varanid lizards, ziphodonty is much more pervasive in the fossil record. Here we present the first model for the development of ziphodont teeth in theropods through histological, SEM, and SR-FTIR analyses, revealing that structures previously hypothesized to prevent tooth breakage instead first evolved to shape and maintain the characteristic denticles through the life of the tooth. We show that this novel complex of dental morphology and tissues characterizes Theropoda, with the exception of species with modified feeding behaviours, suggesting that these characters are important for facilitating the hypercarnivorous diet of most theropods. This adaptation may have played an important role in the initial radiation and subsequent success of theropods as terrestrial apex predators.
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