ArticleProceedings. Biological sciences2022
Ecological signal in the size and shape of marine amniote teeth.
Article in Proceedings. Biological sciences, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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14 citing papers in PubMed.
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- Predicting body length and assessing the shape of tail-propelled Mesozoic marine reptiles.Biology letters · 2025Article
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- Skull sinuses precluded extinct crocodile relatives from cetacean-style deep diving as they transitioned from land to sea.Royal Society open science · 2024Article
- Comparative functional morphology indicates niche partitioning among sympatric marine reptiles.Royal Society open science · 2024Article
- Thalattosauria in time and space: a review of thalattosaur spatiotemporal occurrences, presumed evolutionary relationships and current ecological hypotheses.Swiss journal of palaeontology · 2024Review
- Craniodental ecomorphology of the large Jurassic ichthyosaurian Temnodontosaurus.Journal of anatomy · 2024Article
- The rise of macropredatory pliosaurids near the Early-Middle Jurassic transition.Scientific reports · 2023Article
- Armed to the teeth: The underestimated diversity in tooth shape in snakes and its relation to feeding behavior and diet.Ecology and evolution · 2023Article
- Late Jurassic teeth of plesiosauroid origin from the Owadów-Brzezinki Lägerstatte, Central Poland.PeerJ · 2023Article
- Article
- Ecological signal in the size and shape of marine amniote teeth.Proceedings. Biological sciences · 2022Article
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7 authors.
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Abstract
Amniotes have been a major component of marine trophic chains from the beginning of the Triassic to present day, with hundreds of species. However, inferences of their (palaeo)ecology have mostly been qualitative, making it difficult to track how dietary niches have changed through time and across clades. Here, we tackle this issue by applying a novel geometric morphometric protocol to three-dimensional models of tooth crowns across a wide range of raptorial marine amniotes. Our results highlight the phenomenon of dental simplification and widespread convergence in marine amniotes, limiting the range of tooth crown morphologies. Importantly, we quantitatively demonstrate that tooth crown shape and size are strongly associated with diet, whereas crown surface complexity is not. The maximal range of tooth shapes in both mammals and reptiles is seen in medium-sized taxa; large crowns are simple and restricted to a fraction of the morphospace. We recognize four principal raptorial guilds within toothed marine amniotes (durophages, generalists, flesh cutters and flesh piercers). Moreover, even though all these feeding guilds have been convergently colonized over the last 200 Myr, a series of dental morphologies are unique to the Mesozoic period, probably reflecting a distinct ecosystem structure.
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