ArticleBiology letters2020
Convergent dental adaptations in the serrations of hypercarnivorous synapsids and dinosaurs.
Article in Biology letters, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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10 citing papers in PubMed, 17 citations in OpenAlex.
- Early Permian terrestrial apex predator regurgitalite indicates opportunistic feeding behaviour.Scientific reports · 2026Article
- Sharpening our understanding of saber-tooth biomechanics.Anatomical record (Hoboken, N.J. : 2007) · 2025Review
- Paleo-evo-devo implications of a revised conceptualization of enameloids and enamels.Biological reviews of the Cambridge Philosophical Society · 2025Review
- Early-middle Permian Mediterranean gorgonopsian suggests an equatorial origin of therapsids.Nature communications · 2024Article
- Iron-coated Komodo dragon teeth and the complex dental enamel of carnivorous reptiles.Nature ecology & evolution · 2024Article
- Size and shape heterodonty in the early Permian synapsid Mesenosaurus efremovi.Journal of anatomy · 2024Article
- Predatory synapsid ecomorphology signals growing dynamism of late Palaeozoic terrestrial ecosystems.Communications biology · 2024Article
- The postcranial anatomy ofPeerJ · 2024Article
- Exceptionally rapid tooth development and ontogenetic changes in the feeding apparatus of the Komodo dragon.PloS one · 2024Article
- Lungfish-like antero-labial tooth addition and amphibian-like enameloid-enamel transition in the coronoid of a Devonian stem actinopterygian.Journal of anatomyArticle
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Authors and funding
4 authors at 4 institutions in 2 countries.
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No grant is acknowledged in the PubMed record.
Abstract
Theropod dinosaurs are well known for having a ziphodont dentition: serrated, blade-shaped teeth that they used for cutting through prey. Serrations along the carinae of theropod teeth are composed of true denticles, a complex arrangement of dentine, enamel, and interdental folds. This structure would have supported individual denticles and dissipated the stresses associated with feeding. These particular serrations were previously thought to be unique to theropod dinosaurs and some other archosaurs. Here, we identify the same denticles and interdental folds forming the cutting edges in the teeth of a Permian gorgonopsian synapsid, extending the temporal and phylogenetic distribution of this dental morphology. This remarkable instance of convergence not only represents the earliest record of this adaptation to hypercarnivory but also demonstrates that the first iteration of this feature appeared in non-mammalian synapsids. Comparisons of tooth serrations in gorgonopsians with those of earlier synapsids and hypercarnivorous mammals reveal some gorgonopsians acquired a complex tissue arrangement that differed from other synapsids.
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